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Marco Rubio

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Republican front-runner Donald Trump is receiving criticism from both parties for his refusal to disavow the Klu Klux Klan and white supremacist David Duke during an interview Sunday

Republican front-runner Donald Trump is receiving criticism from both parties for his refusal to disavow the Klu Klux Klan and white supremacist David Duke during an interview Sunday. Republican rival Marco Rubio condemned Trump for not disavowing the KKK, saying it makes him "unelectable." Trump later responded on Twitter. Watch the back and forth on the campaign trail Sunday. CBSN's Vladimir Duthiers has the details.

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GOP presidential candidate Sen. Marco Rubio, R-Florida, calls front-runner Donald Trump a “world-class con artist” and accuses him of ripping off American people. The self-proclaimed “underdog” has committed to “be in as many states as it takes"

GOP presidential candidate Sen. Marco Rubio, R-Florida calls frontrunner Donald Trump a “world-class con artist” and accuses him of ripping off the American people. The self-proclaimed “underdog” has committed to “be in as many states as it takes to ensure that I'm the nominee and that Donald Trump never gets to 1,236 delegates.”

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Ahead of Super Tuesday’s nominating contests, “Face the Nation” has the latest on the 2016 campaign trail, with Republican candidates Donald Trump, Texas Sen. Ted Cruz, Florida Sen. Marco Rubio, Democratic candidate Bernie Sanders, and others

Ahead of Super Tuesday’s nominating contests, “Face the Nation” has the latest on the 2016 campaign trail, with Republican candidates Donald Trump, Texas Sen. Ted Cruz, Florida Sen. Marco Rubio, Democratic candidate Bernie Sanders, and others.

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Ahead of Super Tuesday's nominating contests, "Face the Nation" has the latest on the 2016 campaign trail, with Republican candidates Donald Trump, Texas Sen. Ted Cruz, Florida Sen. Marco Rubio, Democratic candidate Bernie Sanders, and others

Ahead of Super Tuesday's nominating contests, "Face the Nation" has the latest on the 2016 campaign trail, with Republican candidates Donald Trump, Texas Sen. Ted Cruz, Florida Sen. Marco Rubio, Democratic candidate Bernie Sanders, and others.

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