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Marco Rubio: I won't primary Trump and other Republicans shouldn't either

Sen. Marco Rubio, R-Florida, was one of President Trump's fiercest critics on the campaign trail in 2016, but now he says he won't run against the president in the 2020 Republican primary. John McCormack, senior writer for the conservative magazine The Weekly Standard, joins CBSN's "Red and Blue" to discuss how Rubio is embracing Mr. Trump.
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