Biden fends off attacks from all sides in second round of Detroit debate

Former Vice President Joe Biden came under fire from his fellow Democratic presidential hopefuls in the second round of the debate in Detroit on Wednesday, with challengers like Kamala Harris and Cory Booker hoping to put a dent in his status as the frontrunner for the party's nomination.

Over the course of more than two hours in Detroit's historic Fox Theater, Biden defended himself along two lines of attack: critiques that his current policy proposals aren't progressive enough, and attacks on his extensive record, built up over the course of...