Martin Shkreli, the disgraced ex-CEO of Turing Pharmaceuticals, revealed on Friday night that he is backing the presidential candidacy of former Florida Gov. Jeb Bush. Shkreli, who achieved national notoriety for jacking up the price of a rare life-saving medication and expressing a complete lack of contrition for it -- a feat that earned him the nickname "Pharma Bro" -- announced his support for the struggling Republican contender in a tweet directed at Bush.