Politics. Lies and innuendos promoted and further distorted via the biased media. Paid for with millions of federal reserve notes via PACs seeking power and control from both sides of the fence. 
The two front runners, both indictments to their chosen professions, and one soon to be "anointed" as commander in chief represent the perfect storm for this kind of nonsense. Its full steam ahead for the US of A political machine helmed and crewed by small elite groups of economic royalists. Go ahead, Fact Check This Fact!