Obama revs up swing state voters
bbc.co.uk/news/world-us-canada-194688851milhaodetweets 1 Milhão de Tweets
Obama revs up swing state votershttp://t.co/GI49GG7GBarack Obama in Ohio Labor Day campaign stop
Barack Obama is locked in a tight race with Mitt Romney, opinion polls showCampaigning in Detroit, Michigan, a major hub for car manufacturing, Vice-President Joe Biden stuck to the same message, saying: "America is better off today than they left us when they left."
He roused the crowd with the familiar slogan: "Osama bin Laden is dead and General Motors is alive."
But in North Carolina, a state that both parties are vying to win in November's general election, Republican vice-presidential candidate Paul Ryan was on the campaign trail, offsetting the Democratic message.
"Simply put, the Jimmy Carter days look like the good old days compared to where we are now," he told supporters, referring to the Democratic president ousted from office after just term in 1980 by Ronald Reagan.
While most Americans spent Monday marking Labor Day, Mr Romney issued a statement from his lakeside home in the state of New Hampshire, saying: "For far too many Americans, today is another day of worrying when their next paycheck will come."
Correspondents say the Democratic push to highlight what they see as Mr Obama's economic achievements comes the day after a key Obama supporter, Governor Martin O'Malley of Maryland, suggested Americans were not better off than they were four years ago.
Mr O'Malley sought to clarify his remarks on Monday, telling CNN: "We are clearly better off as a country because we're now creating jobs rather than losing them.
"But we have not recovered all that we lost in the Bush recession. That's why we need to continue to move forward," with a second Obama term, he added.