Obama gets second chance in debate rematch with Romney

A worker walks past a sign outside the site of the second U.S. presidential campaign debate in Hempstead, New YorkHEMPSTEAD, New York (Reuters) – President Barack Obama's camp promised that the American public would see a more energized candidate on Tuesday night as Obama tries to keep Republican challenger Mitt Romney at bay in a high-stakes debate three weeks before Election Day. Romney's campaign got a much-needed shot in the arm two weeks ago when he came out swinging in the first matchup between the two candidates, while Obama was widely criticized, including by his own supporters, for his passive response. …