Donald Trump wins over another former rival.
FOX's Jared Halpern has more from Washington:
Doctor Ben Carson says there's more to Donald Trump than the bluster you see at rallies:
(Carson) "He is actually a very intelligent man who cares deeply about America."
Carson says there are two Donald Trump's, the one on stage and the other in private:
(Carson) "Sits there and considers things very carefully. You can have a very good conversation with him."
Trump is hoping to rack up dozens of more delegates Tuesday night by capturing winner take all primaries in Florida and Ohio, considered must-wins for John Kasich and Marco Rubio.
In Washington, Jared Halpern, FOX News.