Cruz fires back on citizenship, says McCain is trying to help Rubio
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Cruz brushed off McCain's suggestion that it was "worth looking into" the issue, saying the 2008 GOP nominee is simply trying to help Sen. Marco RubioMarco Antonio RubioGOP senators introduce bill targeting Palestinian 'martyr payments' House to vote on Uyghur bill amid diplomatic boycott of Beijing Olympics This week: Congress poised to go into December overtime MORE (R-Fla.) win the Republican nomination.
 
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"I think it is no surprise to anybody that John McCain is going to be supporting Marco Rubio in this election," Cruz told Bloomberg's Mark Halperin on "With All Due Respect."
 
"It's no surprise at all that he's trying to do what he can to help the candidate that he's favoring who he thinks shares policy positions with him," Cruz added. 
 
McCain, who faced similar eligibility questions during his 2008 bid, argued during a local radio program in Arizona on Wednesday that there is a difference between him and Cruz.
 
Cruz was born in Canada to an American mother. McCain was born on a U.S. military base in Panama. 
 
"So I think there is a question. I am not a Constitutional scholar on that, but I think it’s worth looking into. I don’t think it’s illegitimate to look into it," McCain said.
 
Cruz has argued that he is eligible for the presidency and a "natural born citizen" as stipulated by the Constitution after rival Donald TrumpDonald TrumpMan sentenced to nearly four years for running scam Trump, Biden PACs Meadows says Trump's blood oxygen level was dangerously low when he had COVID-19 Trump endorses David Perdue in Georgia's governor race MORE questioned his eligibility on Tuesday.
 
McCain had endorsed Sen. Lindsey GrahamLindsey Olin GrahamGOP senators introduce bill targeting Palestinian 'martyr payments' Bipartisan senators earmark billion to support democracies globally Democrats see Christmas goal slipping away MORE (R-S.C.) for president, but Graham dropped out of the race last month after failing to gain traction in the polls.