Mitt Romney Could Soon Endorse Marco Rubio. Will Jeb Join Him?

Jeb Bush’s resignation from the presidential race has already set off a chain reaction within the G.O.P., with The Huffington Post reporting Mitt Romney is set to endorse Marco Rubio following his strong second-place finish in Saturday’s South Carolina primary. And, according to Politico, the pressure is already on for Bush to do the same.

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