Biden parries attacks from rivals in fiery Democratic debate

By BILL BARROW and STEVE PEOPLES
HOUSTON  — Joe Biden parried attack after attack from liberal rivals Thursday night on everything from health care to immigration in a debate that showcased profound ideological divides between the Democratic Party’s moderate and progressive wings.
The prime-time debate also elevated several struggling candidates, giving them a chance to introduce themselves to millions of Americans who are just beginning to follow the race.
Biden dominated signi