What does Jeb Bush get for $20 million in TV ad buys? Not much.

Jeb Bush and his supporters have spent more than twice that of any other candidate or outside group on TV ads in the 2016 presidential race. And what does the former Florida governor get for nearly $20 million, asks Mark Murray of NBC News. Apparently, not much. Bush’s poll numbers are currently languishing in the single digits both nationally and in the early primary states. Right to Rise, the pro-Bush super PAC, has made $19.5 million in ad spending for…