John Kasich would make a great running mate for Donald Trump, according to Rudy Giuliani, who said he was now "100 percent" behind the Manhattan billionaire. Appearing on Fox News’ "Hannity" on Monday night, the former New York City mayor suggested the Ohio governor would be geographically beneficial to Trump in a general election."Kasich, because of Ohio," Giuliani said when Sean Hannity asked him to recommend a vice-presidential pick.