Climate Super PAC Wants You To Choose Which Candidate It Will Back

WASHINGTON -- Hillary Clinton and Bernie Sanders are still locked in a heated battle for the Democratic presidential nomination. Which will get the backing of -- and maybe a boost from -- a political action committee specifically focused on climate change?

Climate Hawks Vote, a super PAC created to mobilize voters and money behind candidates who push to address climate change, is holding its own primary contest to determine which Democrat it will endorse in the primary, if any.