Controversial Donald Trump adviser Roger Stone is at again and this time he’s provoked Geraldo Rivera into threatening physical assault against him. The Fox News host promised to kick Stone’s “racist ass” today after Stone decided to pick a fight with CNN contributor Ana Navarro, a Latina, and former CNN contributor Roland Martin, an African-American, recently tweeting that both political pundits were “quota hires”: Rivera, a former “Celebrity Apprentice” contestant, quickly jumped to the defense of Navarro and Martin and urged Trump to dump Stone, whom he described as a “thug” Stone quickly shot back, calling him “pathetic” and a...