McCain tries to turn must-win states; Obama stays on offense

As they enter their final day of campaigning before Election Day, Sen. John McCain is trying to swing undecided voters in key battleground states, while Sen. Barack Obama is staying on the offensive by campaigning in territory that is usually safely Republican. In addition, both campaigns are ratcheting up their get-out-the-vote efforts, as election officials predict record turnouts -- and long lines -- on Tuesday.McCain on Monday hopes he can shift enough voters in a handful of critical states to give him enough votes to pull a come-from-behind victory. He has an uphill climb. There are few undecided voters left, and McCain will have to sway most of them for him to overcome Obama's lead. The latest national CNN poll of polls has Obama ahead of McCain 51 percent to 44 percent, with 5 percent undecided .... (CNN)