He's a science denier, a birther, a proponent of the slippery slope argument that same-sex marriage would lead to legal protections for pedophiles—and he's Donald Trump's nominee to be the chief scientist at the Department of Agriculture. Did we mention that he—Sam Clovis—lacks any science credentials whatsoever? That's got Democratic Minority Leader Chuck Schumer promising to go to the mat over Clovis’s confirmation.