The race to the presidency now turns toward the general election in November. CNN.com Live is your home for all the latest news and views from the campaign trail.
Today's programming highlights...
10:00 am ET - GOP bus tour - While President Obama stages a campaign bus tour across Ohio and Pennsylvania, two prominent Republicans are following the same path with a bus tour of their own. Louisiana Gov. Bobby Jindal and former Minnesota governor Tim Pawlenty speak at a rally in Pittsburgh.
10:45 am ET - Obama continues bus tour - President Obama will speak at an elementary school in Poland, Ohio. He'll then visit Carnegie Mellon University in Pittsburgh for remarks at 1:50 pm ET.
4:55 pm ET - Obama bill-signing ceremony - After returning to Washington, the president will sign legislation preventing student loan interest rates from doubling.
CNN.com Live is your home for breaking news as it happens.