President Barack Obama (SAUL LOEB/AFP/GettyImages)
CHARLOTTE (USA TODAY) - -Perhaps they are only trying to lower expectations, but President Obama's aides are warning backers: Don't expect a sharp rise in the polls after this week's Democratic convention.
The race is too close, the country too polarized.
"We know this election is close," said Obama campaign spokesperson Jen Psaki today on Fox & Friends. "There's a small group of undecided voters."
Mitt Romney didn't get much of a "bounce" either after last week's Republican convention in Tampa. He and Obama are in a virtual dead heat in many polls, less than two months before Election Day on Nov. 6.
These days, conventions are as much about energizing party bases -- encouraging them to work hard on get-out-the-vote efforts in the fall -- as about persuading undecided voters.
Obama senior adviser David Plouffe, appearing Thursday on ABC's Good Morning America, said, "we've always believed that there's very little elasticity" in this election.
"I don't think you should expect a big bounce," Plouffe said. "I think this is a race where we've got a small, but important lead in some battleground states.
"It's going to be very, very close all the way out," he added.
Obama and Romney both campaign today in New Hampshire and Iowa.
We won't know for sure whether the convention helped Obama much numerically until new polls come out next week.