One idea would be to seat delegates based on the Florida and Michigan primaries. Those states were stripped of their delegates because their primaries were held early in violation of party rules.
Howard Dean, chairman of the Democratic National Committee, said Sunday he doubted Florida and Michigan delegations would be seated without some sort of compromise.
"I think it's very unlikely that Florida and Michigan, given how close this race is, are going to be seated as-is," he said on CBS News' "Face the Nation" program.
The DNC will not pay for a do-over so voters in those states can decide between the senators from Illinois and New York, he said The party's money would be better spent challenging Arizona Sen. John McCain, the presumptive Republican nominee, he said.
"The Democratic National Committee is not going to pay for it because, right now, our job is to tell the American people about Senator McCain's record on Iraq and the deficits and so forth, and convince the American people that our nominee is better than Senator McCain."