In an effort to stop Donald Trump from getting the Republican nomination, Marco Rubio encouraged supporters to back John Kasich in the Ohio primary.
"Face the Nation" anchor John Dickerson said this is the plan for those who don't want Trump to be the nominee -- deny him the delegates he needs in order to make it to a contested convention.
"It's what Mitt Romney called for explicitly," Dickerson said. "But it's taken nine days for Senator Rubio to endorse it."
"In real estate they call it the 'good cop, bad cop' negotiation. Trump is playing both parts."
To hear what else Dickerson has to say about the GOP race, watch the video above.