Here in Denver, Senator Hillary Rodham Clinton headlined the second night of the Democratic National Convention with an appeal to unite behind Senator Barack Obama.

Sen. Hillary Clinton: “My friends, it is time time to take back the country we love. And whether you voted for me or you voted for Barack, the time is now to unite as a single party with a single purpose. We are on the same team, and none of us can afford sit on the sidelines. This is a fight for the future, and it is a fight we must win together.”

Despite the call for party unity, aides say tensions remain between the Clinton and Obama camps over their tightly fought race for the Democratic nomination. Clinton staffers reportedly refused to let the Obama campaign approve her final remarks. Clinton aides told the New York Times her remarks were partly tuned to leave the door open for a presidential run in 2012.