This photo taken Dec. 28, 2011, shows Obama 2012 campaign manager Jim Messina at the campaign headquarters in Chicago. Messina, who was David Plouffe's former deputy during the 2008 campaign, has likened the re-election headquarters to a Silicon Valley startup company, demanding metrics and results from his aides.

Associated Press

This Dec. 28, 2011, file photo shows Obama 2012 deputy campaign manager Stephanie Cutter at the Chicago headquarters. Cutter, who has become a forceful voice in the campaign, is a veteran of Kerry's presidential campaign. She has been a blunt defender of Obama's policies on cable television while criticizing Romney's business record and tenure as governor of Massachusetts, Cutter's home state.

Associated Press

This photo taken April 14, 2011, shows senior adviser David Plouffe on the South Lawn of the White House as he accompanies President Barack Obama to Chicago. Obama's 2008 campaign manager is helping shape the president's re-election strategy from the West Wing. The Delaware native returned to Obama's side after Democrats lost control of the House in the 2010 elections and is arguably the most important person in melding Obama's policies with politics.

Associated Press