Obama and Romney, neck and neck, hit campaign trail for final push Obama believes he is winning or even in all the swing states, with early voting and turnout among young people and Latinos outpacing the historic levels of 2008, advisers told reporters on a conference call Tuesday. They dismissed rumors that the campaign was pulling out of some battleground states where Romney has recently gained strength. "The electorate is bigger this year, and our vote margins are, too," campaign manager Jim Messina said, citing polls and early-vote turnout numbers from Ohio, Iowa, Wisconsin and Florida, among others. As an example, Messina noted that Democratic turnout in Florida at this point four years ago was 250,000 votes behind Republicans, whereas today Democrats are just 38,000 votes behind. Obama won Florida in 2008. With the last of three contentious debates behind them, each candidate must summon a final burst of energy to make his case to a dwindling number of undecided American voters. Romney headed to Nevada, where he was scheduled to campaign with his vice-presidential nominee, Rep. Paul Ryan (Wis.). Obama began his day in this Florida town, addressing a raucous crowd of 10,000 supporters. Sounding revved up and not at all like a man in the fight of his political life, he mocked Romney's shifting positions on several foreign policy issues during the debate Monday night as "a severe outbreak" of "Romnesia." "We're accustomed to seeing politicians change their positions, from, like, four years ago,"" Obama said. "We're not accustomed to seeing a politician change their positions from four days ago."" Romney's supporters argued that the debate - in which Obama was more combative, while Romney often expressed approval of the president's positions - reflected the incumbent's increasing vulnerability and the challenger's growing confidence. Eric Fehrnstrom, a senior adviser to Romney, said that while "Mitt Romney came here to debate America's position in the world, I think Obama came here to defend his position in the campaign, which has deteriorated." Vice President Biden, who has been the Obama camp's most aggressive attacker throughout this campaign cycle, slammed Romney for reversing himself at the debate and embracing many of Obama's foreign policy positions. "They've gone from rattling the saber to, you know, being doves carrying, you know, peace - I don't know what they stand for," Biden said on "CBS This Morning" the day after the debate. Look, being president requires a clear vision and a steady hand. That's exactly what President Obama demonstrated. . . . And it's exactly what Governor Romney demonstrated was lacking.