Obama has been spending big chunks of time making his own pleas. He raised money Monday in Connecticut at two events with Hollywood connections.
One fundraiser was at the Westport, Conn., home of film mogul Harvey Weinstein, where two Academy Awards sat on the mantle before a group that included actresses Anne Hathaway and Joanne Woodward, the widow of Paul Newman, and writer Aaron Sorkin. Weinstein told the audience that Obama showed he was "not afraid to throw a punch. Witness the raid on Osama bin Laden. You can make the case that he's the Paul Newman of American presidents."
The events were expected to bring in at least $2.5 million for Obama's campaign.
Romney, who is closing in on his vice presidential pick, spent Monday at his vacation home in New Hampshire, but he, too, has a series of fundraising appearances this week.
Obama aides say their campaign is bringing in enough money to stay competitive in television advertising. The campaign has already purchased most of its air time in battleground states through Election Day using money it raised earlier in the cycle.