Fact-checking the second GOP presidential debate

Posted at 1:44 PM, Sep 17, 2015
and last updated 2015-09-17 13:44:47-04
Scripps has partnered with PolitiFact in providing coverage of the presidential race in 2015. PolitiFact is nationally recognized for fact-checking statements made by politicians.
On Wednesday night, the reporters and editors at PolitiFact turned on their Truth-O-Meter as the second GOP presidential debate took place at the Ronald Reagan Presidential Library in Simi Valley, California.
Here is what the fact-checkers had to say about some of the claims:
Donald Trump:
Says Wisconsin Gov. Scott Walker turned a $1 billion surplus into a $2.2 billion budget deficit.
The CNN moderators aimed to get the Republican presidential candidates to go head-to-head in the second GOP debate and the contenders complied. Frontrunner Donald Trump and Wisconsin Gov. Scott Walker got into verbal tussle over who had a worse fiscal track record. Walker charged that Trump had taken four projects into bankruptcy. Trump fired back that Walker had ruined his state’s budget.
“You were supposed to make a billion dollars in the state,” Trump said. “You lost 2.2 (billion). You have right now a huge budget deficit. That’s not a Democratic point. That's a point. That’s a fact."
Trump is partly right on the money, but he’s mixing apples and oranges, and his use of the word deficit is problematic. PolitiFact Wisconsin covered much of the ground before.
The rules
By law, Wisconsin’s two-year budgets must be balanced -- revenue equaling expenditures.
So, unlike the federal government, Wisconsin can never run an actual budget deficit by borrowing money that piles up as debt.
That said, the state does various projections of what revenues and expenditures will be for the upcoming two-year budget cycle. Those projections can show a surplus or a deficit -- although "deficit" is more accurately termed a projected shortfall, since there is no actual red ink.
But the two figures he cited were projections that received plenty of attention when they were made.
The two figures
In January 2014, the nonpartisan Legislative Fiscal Bureau projected Wisconsin would see a surplus of about $1 billion by June 30, 2015 -- the end of the 2013-15 budget cycle. At the time, revenues were coming in higher than expected.
Walker and the GOP-run Legislature adopted a series of tax cuts later in 2014, making good on a Walker promise to return such surpluses to taxpayers, but drawing criticism for not using the money for other purposes, such as boosting the state’s rainy day fund.
Along the way, however, tax collections grew at a slower pace than had been projected.  
By November 2014, there was a reversal of fortune: Walker’s own Department of Administration projected a $2.2 billion shortfall for 2015-17.
Once again, that figure was not an actual deficit. Indeed, even as a projected shortfall it was overstated.
That’s because the standard for projections made in the months leading up to the next budget cycle is to include all the funding requests made by state agencies -- even though, in reality, those requests always get trimmed. That serves to temporarily inflate the actual picture.
In the end, the 2015-17 budget approved by the Legislature and signed by Walker in July 2015 was balanced -- just as every other Wisconsin state budget is.
Our ruling
Mixing apples and oranges, Trump said that under Walker, “You were supposed to make a billion dollars in the state. You lost 2.2 (billion). You have right now a huge budget deficit. That’s not a Democratic point. That's a point. That’s a fact."
There was in early 2014 a projection of a $1 billion surplus heading into the 2015-17 budget period. Late in 2014, there was a projection of a $2.2 billion shortfall -- the difference between expected revenues and the amount of money being requested by state agencies. But the shortfall was never a deficit -- and some of the surplus was consciously spent by Republicans, as tax cuts.
Trump’s statement has an element of truth but ignores critical facts that would give a different impression.
We rate this claim Mostly False.
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Ted Cruz:
“A majority of the men and women on this stage have previously and publicly embraced amnesty. I am the only candidate on this stage who has never supported amnesty.”
On one of the biggest issues in the 2016 Republican primary -- immigration -- Sen. Ted Cruz, R-Texas, was nothing if not consistent during the second GOP presidential debate.
Cruz, angling to be the primary field’s most hard-line candidate against illegal immigration, said at the CNN Reagan Library debate, “A majority of the men and women on this stage have previously and publicly embraced amnesty. I am the only candidate on this stage who has never supported amnesty.”
That was similar to something he said at the first debate, held in Cleveland and aired by Fox News in August -- that "a majority of the candidates on this stage have supported amnesty. I have never supported amnesty.” We checked that claim and gave it a rating of Mostly True.
The stages were similar for the two debates, with the addition of former Hewlett Packard CEO Carly Fiorina in the second debate. Does Cruz’s claim hold up?
As we noted in our previous fact-check, the tough part of checking this claim is that "amnesty" is a vague term. Some consider amnesty to be anything less than deporting all illegal immigrants, while others think of amnesty as letting immigrants stay with no punishment or additional requirements. Cruz has been adamantly opposed to a pathway to citizenship, but he’s been quiet on whether he would support some other legal status for illegal immigrants.
We’ve previously found that in modern politics, the standard for amnesty is the Immigration Reform and Control Act of 1986, supported and signed by President Ronald Reagan. The law allowed illegal immigrants to become legal permanent residents if they met certain standards, such as proving they had been in the country for several years and paying back taxes and a fine. After meeting other requirements, the legal permanent residents could apply for a green card and eventually make their way toward citizenship. The law was widely described as an amnesty program.
We do know Cruz considered the 2013 bipartisan Senate immigration proposal to be a form of amnesty and opposed the bill. The failed bill was similar to the Reagan law in that immigrants had to meet certain requirements before gaining legal status that put them on a path to citizenship, though the requirements are more stringent than the previous law. So we’ve used that bill as a rough standard for evaluating the positions of those who shared the debate stage with Cruz.
We’ll also note that since Cruz used the past tense -- “previously and publicly embraced amnesty” -- we’re only interested in whether the candidates have taken this position in the past, not whether they do now, or whether they have gone back and forth on the policy.
Three members of the debate field have expressed outright support for the Gang of Eight bill, so called after the bipartisan group of eight senators who proposed it in 2013.
Sen. Marco Rubio, R-Fla., by Cruz’s standards, has been a clear supporter of amnesty, as he was a member of the Gang of Eight. At the time, he said the bill was "not amnesty," and we rated that claim Half True because of the vague nature of the term "amnesty." Since then, Rubio has softened his support for a path to citizenship and emphasized border security, but he still supports passing immigration legislation.
Fellow Floridian Jeb Bush, the former governor, said in March 2015 that he would put his support behind a Gang of Eight-style immigration bill that included a path to citizenship. Like Rubio, though, Bush insisted at the debate that his position is not amnesty, because his ideal plan requires illegal immigrants to meet certain requirements before gaining legal status.
Recently, former Arkansas Gov. Mike Huckabee has avoided saying whether he would support a path to citizenship, though he has suggested he would not blanket deport all illegal immigrants. But in 2013, asked by Fox if he would side with Cruz or the Gang of Eight, Huckabee said he would choose the latter -- though he emphasized an eventual immigration bill had to emphasize border security. He has also previously endorsed a path to citizenship.
Meanwhile, Sen. Rand Paul, R-Ky., did not support the Gang of Eight bill because he said it did not include strong enough provisions for ensuring reduced illegal immigration in the future. But in a March 2015 speech, Paul walked a fine line, supporting a path to some sort of normative legal status, though without using the word "citizenship."
For the remaining candidates, we could not find their opinions on the Gang of Eight bill specifically, but all four have at some point said they supported a path either to citizenship or legal status, even if their position has since changed.
Wisconsin Gov. Scott Walker no longer supports a path to citizenship, but he said in 2013 that "it makes sense" people could not only stay in the United States but get citizenship after overcoming penalties, waiting periods and other requirements.
Neurosurgeon Ben Carson has declined to comment on the Gang of Eight bill. He has said that the solution for illegal immigrants currently in the United States is for them to go back to their home country, where they can apply for a visa and return legally. In Carson’s 2012 book, America the Beautiful, he said a path to citizenship is a moral choice.
In 2010, New Jersey Gov. Chris Christie said he supported a "common-sense path to citizenship." But this year, he said he’s changed his mind and no longer supports such a path.
Ohio Gov. John Kasich said in 2014 and 2015 that he isn’t keen on a path to citizenship, but he’s open to the possibility -- especially because you can’t deport everyone who is already here, and it would help get lawmakers to a point of compromise on immigration legislation.
Despite his fiery rhetoric regarding Mexican immigrants, real estate mogul Donald Trump hasn’t said many specifics about what he’d do regarding the illegal immigrants already here. He has said this year that he would support a "merit-based" system for some illegal immigrants earning their right to stay, echoing comments he made in 2011.
Finally, the newcomer to the main debate stage -- Fiorina -- has also stated publicly that she is open to a path to legal status for at least some undocumented immigrants. In a June 2015 appearance on MSNBC’s Morning Joe, she said, “I think legal status is a possibility for sure. I think their children maybe can become citizens.”
Our ruling
Cruz said at the second Republican debate, “A majority of the men and women on this stage have previously and publicly embraced amnesty. I am the only candidate on this stage who has never supported amnesty.”
We’ll reiterate that many of these candidates have changed their position on what to do about undocumented immigrants already in the United States, and we’ll note once again that the definition of "amnesty" isn’t hard and fast. So what Cruz may consider amnesty might not be what any of these candidates considers to be amnesty.
Still, as far as we can tell, Cruz is the only one on the CNN debate stage who has never plainly supported something like a path to citizenship or some other form of legal status.
We rate Cruz’s claim Mostly True.
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Jeb Bush:
Said Donald Trump wanted casino gambling in Florida, got told 'no'
During the second GOP debate, Jeb Bush said that Florida stood up to Donald Trump when he tried to bring casino gambling to Florida.
Here is part of their testy exchange:
Bush: "He wanted casino gambling in Florida -- "
Trump: "I didn’t -- "
Bush: "Yes, you did."
Trump: "Totally false."
Bush: "You wanted it, and you didn’t get it, because I was opposed to -- "
Trump: "I would have gotten it."
Bush: " -- casino gambling before -- "
Trump: "I promise, I would have gotten it."
Bush: " -- during and after. I’m not going to be bought by anybody."
Trump: "I promise, if I wanted it, I would have gotten it."
Later, Bush added, "When he asked Florida to have casino gambling, we said no."
Trump: "Wrong."
Did Trump ask to bring casino gambling to Florida, and did Florida under Bush shut him down?
Trump’s history on casino gambling in Florida
Trump spokeswoman Hope Hicks declined to provide any evidence to refute Bush’s claim. A spokeswoman for Bush referred us to a Sept. 1 CNN article headlined "Jeb Bush: the man who killed Trump’s casino dreams."
News reports from the 1990s show that Trump helped finance Bush’s campaign and the state Republican Party during Bush’s 1998 bid for governor -- while Trump was seeking to open casinos in Florida.
Trump held a 1997 fundraiser, which reportedly raised $500,000 for Bush when he ran for governor, according to the South Florida Sun-Sentinel. As the race continued the next year, Trump Hotels & Casino Resorts donated $50,000 to the Republican Party of Florida, when Trump was pushing the state to allow him to open casinos on Seminole tribal land. The tribe was seeking to open Vegas-style slot machines and poker in casinos, to be managed by Trump.
Trump backed a 1998 Seminole proposal to state officials to share gambling revenue with Florida. He also hosted a Seminole leader on his vacation estate that year, reported the Tampa Bay Times.
Bush, meanwhile, was already known as an opponent of gambling because he had served on the board of No Casinos, a group that organized a few years earlier to fight casinos in Florida.
State Republicans said at the time that donations from gambling interests had no bearing on the party’s agenda.
''It's not like our people say, 'You give us $ 50,000, buddy boy, and this is what you're gonna get,'' said Bob Sparks, Republican Party spokesman, according to a 1998 Sun-Sentinel report. ''Both Jeb Bush and the party have expressed no interest at all in expanding gambling."
Bush took office in 1999 and maintained his stance on casinos.
"I am opposed to casino gambling in this state, and I am opposed whether it is on Indian property or otherwise," Bush told the Tampa Bay Times in 1999. Bush also threatened to sue to prevent gambling in the state.
In 2005, Bloomberg Business wrote a story about Trump’s failed attempt to bring casinos to Florida and his falling out with his consultant Richard T. Fields. (Bloomberg Business drew information from court filings. In 2004, Trump sued Fields in Broward County Circuit Court, and Fields intervened in the bankruptcy of Trump Hotels & Casino Resorts Inc.)
From Bloomberg Business:
"Fields negotiated on Trump's behalf with the Seminoles to build and manage casinos on tribal property. Fields maintains in court documents that Trump was only interested in building ‘Class III’ casinos, offering pure games of chance, such as slot machines, craps, and roulette. When Florida Governor Jeb Bush nixed the idea, ‘Trump directed that the effort be terminated entirely,’ Fields's filings say.
"But Fields says Trump gave him the green light to try on his own. That's backed up by an affidavit signed in August from Mallory E. Horne, a lobbyist hired by Trump. Horne testified that he told Trump and Fields in late 1998 that Florida officials wouldn't budge. According to Horne, Trump replied, ‘That's the end of it,’ then told Fields: ‘If you want to try this on your own, Richard, that's fine, but I'm through with it.’ "
Our ruling
Bush said of Trump, "When he asked Florida to have casino gambling, we said no."
We didn’t find that Trump directly petitioned the state for gambling, but there’s a pile of evidence that Trump was pursuing a deal to operate casinos on Seminole land in Florida. And at the same time, Trump gave money to Bush and the state party during Bush’s 1998 race for governor.
Trump said it was "totally false" that he sought casino gambling and failed, but we find that Bush has the better part of this fight.
We rate Bush’s statement Mostly True.
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Mike Huckabee: 
Says we've given $100 billion to Iran
"We've just now given over $100 billion (to Iran),” said Mike Huckabee, the former governor of Arkansas. "The equivalent in U.S. terms is $5 trillion."
Iran is getting a sizeable award for the nuclear deal with the United States -- to the tune of $100 billion, presidential candidate Mike Huckabee said at the second Republican debate.
The Iran deal was a big topic at the Sept. 16 CNN debate, held at the Ronald Reagan Presidential Library. Several of the candidates blasted the deal between the United States, Iran and several world powers -- including the former governor of Arkansas..
"We've just now given over $100 billion (to Iran),” Huckabee said. "The equivalent in U.S. terms is $5 trillion."
We’ve looked into similar claims before, so we decided to take a look at Huckabee’s version.
The $100 billion
It’s true that Iran will reap significant economic benefits from the deal, because many sanctions levied against Iran will be lifted if Iran complies with restrictions on its nuclear program. Iran will have access to a good deal of these funds within several months of the deal being enacted, said Matthew Kroenig, a professor of international relations at Georgetown University.
Huckabee made it sound as if the United States is giving some kind of subsidy or compensation. But the money already belongs to Iran; Iran just hasn’t been able to access it. In similar claims by other candidates and officials, the $100 billion figure has referred to the dollar amounts of Iran’s foreign assets that could be unfrozen when sanctions are lifted. An example is money Iran earned from selling oil but is held by a foreign bank.
It also includes the billions of dollars Iran has lost in revenues and opportunity costs because the country has not been able to fully participate in the global marketplace, said Michael Malloy, a law professor at University of the Pacific McGeorge School of Law and an expert on economic sanctions, in a prior interview with PolitiFact.
Estimates of the value of Iran’s foreign assets start as low as $25 billion, and they run as high as $150 billion. Most experts we’ve interviewed on this question peg the amount of unfrozen assets at about $100 billion, but no one is 100 percent sure of the amount.
Iran has financial obligations other than the sanctions, so even if all the sanctions are lifted, Iranian officials won’t suddenly have all of these assets at their disposal. For example, Iran owes billions to China for infrastructure projects. The lower estimates take into account restrictions on the money other than the sanctions, said Richard Nephew, an expert on economic sanctions at Columbia University’s Center on Global Energy Policy, also in a prior interview.
The Obama administration has said that after Iran pays its outstanding financial obligations, it will have about $56 billion at its disposal.
How does this translate into $5 trillion in America?
The $5 trillion
Based on a prior fact-check, we can deduce that Huckabee is comparing the Iranian and U.S. economies based on gross domestic product, the standard measurement of an economy’s size.
According to the World Bank, Iran’s economy is $415 billion. So the $100 billion in sanctions relief amounts to about 25 percent of the economy. The United States’ economy is about $17 trillion. Twenty-five percent of that is $4.25 trillion -- a little low but not too far off from Huckabee’s $5 trillion.
It’s not a perfect measurement, said Tara Sinclair, an economics professor at George Washington University, who said she would be more interested in comparing the two in terms of GDP per capita.
Though, “I do think it gives an interesting comparison of the scale,” Sinclair said of Huckabee’s claim.
Our ruling
Huckabee said, "We've just now given over $100 billion (to Iran). The equivalent in U.S. terms is $5 trillion."
Huckabee’s $100 billion figure is one of the most commonly cited estimates of how much the Iranian economy will reap from sanctions relief under the Iran deal, though no one is fully certain of the amount. But he gives a misleading impression of the transaction by implying the United States is giving the money to Iran when it would just unfreeze the assets.
We rate Huckabee’s claim Half True.
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Carly Fiorina:
Said: “The marijuana that kids are smoking today is not the same as the marijuana that Jeb Bush smoked 40 years ago.”
The Republican presidential candidates sparred over many issues in the CNN debate, including the potency of pot. 
On drug policy, there was talk about expanded rehabilitation and prison reform to reduce the number of nonviolent prisoners. When it came to marijuana, one candidate, New Jersey Gov. Chris Christie took the hardest line, saying he would enforce a federal ban nationwide.
Kentucky Sen. Rand Paul favored allowing states like Colorado do as they please. So did former Florida Gov. Jeb Bush, who explained his position by acknowledging his own use. “So, 40 years ago, I smoked marijuana, and I admit it. I'm sure that other people might have done it and may not want to say it in front of 25 million people. My mom's not happy that I just did.”
Former Hewlett Packard CEO Carly Fiorina shared the view that states should decide for themselves, but she offered an important caution. 
“The marijuana that kids are smoking today is not the same as the marijuana that Jeb Bush smoked 40 years ago,” Fiorina said.
We thought it would be good to explore whether pot has become more potent since the 1970s. This is something we’ve looked at before.
The main psychoactive agent in marijuana is THC, or delta-9-tetrahydrocannabinol. When researchers discuss the potency of marijuana, they typically are measuring the concentration of THC.
THC levels differ depending on the part of the plant used, and how it is processed for consumption. In addition to marijuana, there are materials such as sinsemilla (the flowering tops of unfertilized female plants), hashish or cannabis resin, and hash oil (a concentrated extract from cannabis plants). Hashish oil tends to have much higher concentrations of THC than marijuana or even sinsemilla. Both of these have become more popular in recent years.
But what about marijuana itself? Has weed as we once knew it become more potent?
The answer is yes. THC levels are on the rise, and they have been for quite some time.
The University of Mississippi Potency Monitoring project analyzed tens of thousands of marijuana samples confiscated by state and federal law enforcement agencies since 1972. The average potency of all seized cannabis has increased from a concentration of 3.4 percent in 1993 to about 8.8 percent in 2008. Potency in sinsemilla in particular has jumped from 5.8 percent to 13.4 percent during that same time period.
Back in the late 1970s , the mean potency for marijuana was about 3 percent, Mahmoud ElSohly, director of marijuana research with the monitoring project, told us in an interview for a prior fact-check.
Further, the number of samples confiscated with a THC concentration greater than 9 percent has increased significantly, from 3.2 percent in 1993 to 21.5 percent of the 1,635 marijuana samples collected in 2007.
But while the average is up due to the availability of marijuana with a higher THC count, the high mark in potency (somewhere around 25-27 percent) remains relatively unchanged in the last couple decades and isn’t likely to increase, ElSohly said.
For the average adult recreational or habitual user, there’s uncertainty about what rising THC levels mean.
Only a handful of studies have looked at how users smoke marijuana with varying THC levels. Several of these studies noted that when test subjects were using more highly concentrated marijuana, they often smoked less than they did when consuming product with a lower THC level.
In that regard, THC would seem to mimic how people consume beverages with different alcohol content: People tend to drink whiskey in shots, wine by the glass and beer by the mug. Marijuana may work the same way, said Carl Hart, a psychology professor at Columbia University who studies the effects of psychoactive drugs.
Roger Roffman, a social work professor at the University of Washington and author of the upcoming book Marijuana Nation, noted that there has been little research on the impact of potency in cannabis at the levels seen today, especially in products like hash oil, meaning we don’t know everything about its potential impact.
Our ruling
Fiorina said the marijuana kids smoke today is not what it was 40 years ago. Studies back that up. THC potency is up, with a growing fraction of seized marijuana having a concentration of 9 percent or more. There is some evidence that users smoke less when the pot is more potent, but that doesn’t detract from Fiorina’s main point.
We rate this claim True.
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Donald Trump:
Says Marco Rubio has “the worst voting record there is today.” 
In one of many heated exchanges during the second Republican primary debate, Donald Trump mocked Florida Sen. Marco Rubio’s poor attendance record in the Senate after Rubio schooled Trump on his lack foreign policy knowledge.
“The one thing that the federal government must do -- the one thing that only the federal government can do -- is keep us safe,” Rubio said on Sept. 16. “And a president better be up-to-date on those issues on his first day in office, on her first day in office.”
“You have to understand, I am not sitting in the United States Senate with, by the way, the worst voting record there is today,” Trump countered, referring to Rubio’s missed votes. “No. 1, I am not sitting in the United States Senate. I am a businessman doing business transactions.” 
Rubio admitted that he didn’t have the best attendance record and suggested that’s because he’s focusing on something more important: the White House. We wondered if Rubio really has missed the most Senate votes in the GOP field. 
Neither the Rubio nor Trump campaigns got back to us. But we took a look at the roll calls and found that the “most truant” award goes to Rubio if we’re looking at this year only. If we examine career records, Republican rival Sen. Ted Cruz of Texas takes the crown.  
Votes missed this year
From the start of the year to Sept. 9, Rubio had missed 77 of 263 roll call votes, USA Today reported, though he was present for the two additional votes that have taken place since that tally. 
Based USA Today’s and our own calculations, here’s how Rubio stacks up against the other senator-candidates right now:
Votes missed (Jan. 1 to Sept. 16) 
Absentee rate
Marco Rubio (R-Fla.)
29.1 percent
Ted Cruz (R-Texas)
23.4 percent
Lindsey Graham (R-S.C.)
22.6 percent
Bernie Sanders (I-Vt.)
3.4 percent
Rand Paul (R-Ky.) 
1.5 percent
Republican rival Sens. Ted Cruz of Texas and Sen. Lindsey Graham of South California are close to Rubio’s truancy rate. In contrast, Sen. Rand Paul of Kentucky, who’s running for the Senate and the presidency, has the best attendance record. (The senators who are running for president tend to have the lowest vote participation rates.)
The majority of the votes Rubio’s skipped came after April 13, when he announced his candidacy, the Tampa Bay Times noted. 
"It's not unusual for presidential candidates to miss Senate votes,” Rubio spokeswoman Brooke Sammon told the Tampa Bay Times. “Sen. Rubio remains fully engaged in the issues important to Florida and helping Floridians, and as he travels the country to talk about his agenda to help the middle class, there will be no doubt where he stands on any important issues before the Senate."
Overall attendance
If we look at career truancy, Cruz has a worse attendance record than Rubio, but it’s pretty close. Here’s how the presidential field compares, according to data from GovTrack.
Votes missed (career)
Absentee rate
104 out of 922 
11.3 percent
154 out of 1,408
10.9 percent
Hillary Clinton (D-N.Y., 2001-2009)
249 out of 2,616
9.5 percent
221 out of 4,081
5.4 percent
43 out of 1,408
3.1 percent
83 out of 2,761
3.0 percent
Jim Webb (D-Va., 2007-2012)
37 out of 1,839 
2.0 percent
Rick Santorum (R-Penn., 1995-2006 )
79 out of 4,156
1.9 percent
So Cruz has skipped out on more votes over his career than any other senator or former senator in the 2016 race. But beyond the field, neither Cruz or Rubio are the worst ever offenders -- in fact, they didn’t even crack the top 100, according to a May 2015 Washington Post analysis. 
President Barack Obama missed 24.2 percent of votes in his brief senate career. And that doesn’t even compare to the most truant senator of all time: Maryon Allen, D-Ala., who racked up a 43.5 percent absentee rate during her five-month stint in the Senate in 1978. 
Our ruling
Trump said that Rubio has “the worst voting record there is today.” 
He’s accurate if we look at the number of votes missed this year out of the five current senators running for president. Rubio has missed about a third of all votes. 
If we look at career truancy records, Rubio is a close second to Ted Cruz among the current field. 
We rate Trump’s claim Mostly True. 
Click next to see more fact checks.
Donald Trump:
Says Mexico doesn't have birthright citizenship, and Americans are the “only ones” to have it.
Donald Trump confused several facts about birthright citizenship — a 150-year-old practice he has pledged to end — in the second GOP presidential debate.
CNN moderator Jake Tapper asked Trump to explain why this is part of his platform to foe Carly Fiorina, who has said Trump is pandering on the issue.
Trump brought up a scenario of a pregnant woman crossing the border and having a baby in the United States, “and we take care of the baby for 85 years. I don’t think so.”
“And by the way, Mexico and almost every other country anywhere in the world doesn't have that,” he said. “We're the only ones dumb enough, stupid enough to have it.”
We know from a previous fact-check that the United States is somewhat of an outlier in offering birthright citizenship, especially compared its peers. From the same fact-check, we also know the United States is one of 33 countries with such a policy, despite what Trump said about it being the only one “dumb enough, stupid enough” to have it. (We should note that later in this response, Trump slightly corrected himself, saying, “We’re the only country -- one of the only countries -- we’re going to take care of those babies for 70, 75, 80, 90 years? I don’t think so.”)
Trump’s claim about Mexico not offering birthright citizenship didn’t sound right, so we wanted to look it over.
Our hunch proved correct.
Mexico does offer birthright citizenship, even if it’s not an exact copy of the American model.
Birthright citizenship in the United States was first established by the 14th Amendment of the Constitution, primarily to grant legal status to emancipated slaves. The amendment stipulates that "all persons born or naturalized in the United States, and subject to the jurisdiction thereof, are citizens of the United States and of the State wherein they reside." 
The Mexican Constitution says the Mexican “nationality” is obtained by birth if the person is born “within the Republic’s territory whatever their parents’ nationality might be,” among other circumstances.
Our colleagues at noted a technical difference between the Mexican and American constitutions. In Mexico, someone does not become a “citizen” — regardless of whether the person is born to Mexican parents or just in Mexico — until he or she turns 18. At that age, he or she can vote, hold public office or join the military. In addition to being Mexican and 18, he or she must also have “an honest way of life.”
A Mexican-born child is still considered Mexican even without voting rights, found, similar to American children who also do not have access to voting until they turn 18.
Article 37 adds that Mexican nationality by birth “shall never be revoked.”
Birthright citizenship also exists in Canada, Brazil and nearly every other country in Central and South America, according to a list of nations with birthright citizenship maintained by Numbers USA, which supports reduced immigration levels.
Countries that offer birthright citizenship are located almost exclusively in the Western Hemisphere. No country in Europe or East Asia, for example, has a similar citizenship policy.
Our ruling
Trump defended his pursuit of ending birthright citizenship by saying not even Mexico has it, adding the United States is alone on this right.
But that’s not true, no matter how many times Trump repeats this line.
Anyone born on Mexican soil is considered Mexican by nationality, regardless of whether their parents are Mexican. No one in Mexico, even if a person’s parents are Mexican, is considered a “citizen” by the country’s Constitution until he or she turns 18.
The United States and Mexico are joined by more than 30 countries around the world, predominantly in the Americas, that offer birthright citizenship.
We rate the claim False.