baltimore city counsel. from there his political aspirations grew to governor of maryland. but here's something you probably didn't know about martin o'malley. he's front of a rock brand and even used his guitar skills to tease his presidential bid. on the issues, gun control, o'malley wants stronger expanded background checks and a limit on the size of gun magazines. he supports a path to citizen ship, and on climate change, he says it's a real threat. he wants stronger regulation. >> the one time republican u.s. senator of rid rid has just announced he's running. >> reporter: next, chafee. he was a republican but became an independent in 2007 as