Former President Bill Clinton defended Presidents Obama's handling of the economy Wednesday night, during a keynote speech formally nominating Obama as the party's presidential candidate.
Obama will make his case for four more years Thursday night as he accepts his party's nomination.
Clinton received a rock star welcome from Democratic delegates before taking the podium to speak on behalf of Obama, his former nemesis of the 2008 campaign.
"I want to nominate a man who's cool on the outside but who burns for America on the inside," he said.
Clinton said fixing the economy is not that simple.
"He inherited a deeply damaged economy," Clinton said. "He put a floor under the crash; he began the long hard road to recovery and laid the foundation for a modern, more well-balanced economy."
With President Obama's popularity ratings the lowest pre-convention for any incumbent since the 1980s, the Obama campaign hopes Clinton's support will have a positive impact.
David Maraniss, with the Washington Post has written biographies about both men.
"Bill Clinton loves to be needed as much as he needs to be loved, and he's really needed by Barack Obama right now," Maraniss said.
Meanwhile, convention organizers have moved Obama's acceptance speech inside to the Time Warner Cable Arena because of the threat of thunderstorms tonight.
The venue is less than a third the size of the original location for the speech, the outdoor 73,000-seat Bank of America Stadium.
The Obama campaign dismissed charges by critics that the speech was moved over concerns of a lack of enthusiastic voters to fill the larger stadium.
"The fear is it's not just the rain," Antonio Villaraigosa, the 2012 DNC Committee Chair, said. "If there is lightning, people could get hurt."
Whatever the reason, they are leaving out tens of thousands of disappointed supporters.
On another note, making history last night was 27-year-old Benita Veliz, who became the first illegal immigrant to address a national political convention.