Clinton Presses Obama on Efforts For Revotes in Florida and Michigan

One Democratic source said Michigan Democrats, in submitting their plan for a new primary based on the legislation, could ask to waive the provision barring those who voted in the Republican primary from the new Democratic contest.

The other development is a letter sent to Michigan Gov. Jennifer M. Granholm from Govs. Edward G. Rendell of Pennsylvania and Jon S. Corzine of New Jersey -- all support Clinton -- certifying that they have obtained pledges from wealthy fundraisers who are prepared to guarantee the raising of as much as $12 million in private money to cover the cost of the primary.

Of the 10 donors listed in the letter as being willing to guarantee the money, eight are Clinton contributors and five are "Hillraisers": individuals who have raised at least $100,000 for her campaign. None of the 10 is an Obama donor.

If the legislation fails, it is possible that Democrats in Michigan would propose a vote-by-mail plan or a caucus to assure some kind of do-over contest.

Clinton's stop in Detroit pushed back her schedule in West Virginia. A stop in Huntington was moved to late afternoon. When she finally arrived, Clinton offered a different explanation for her tardiness. "We got off to a bit of a slow start this morning due to some weather delays," she told a group of veterans.

Staff writers Jonathan Weisman and Shailagh Murray contributed to this report.