Polls open, Democratic control is on the line

Vice President Joe Biden, left, and Delaware Democratic U.S. Senate candidate Chris Coons, right, applaud while attending a rally for the Delaware Democratic Party ticket, Monday, Nov. 1, 2010, in Wilmington, Del. (AP Photo/Rob Carr)

November 2, 2010 6:04:05 AM PDT
The Democratic Congress that enacted President Barack Obama's far-reaching health care law and plowed staggering sums into economic relief is at risk Tuesday in an election that promises to shake up the political order across the nation.