DETROIT — Senator Clinton today faced a crowd of Michigan voters clearly frustrated by Democratic Party wrangling that has put them at risk of having no say in who will be the party’s nominee.

“I feel as if, as a Michigan voter, I am being disenfranchised,” a woman who voted in the January primary but declined to say which candidate she picked, Carol James, said. The 51-year-old Troy resident held a sign that read, “Michigan wants our votes counted.”

Ms. James considers herself a Democrat but said that may change because the Democratic National Committee has stripped Michigan of its Democratic National Convention delegates for moving up its primary to January 15. State Democratic leaders are trying to find another way to get the delegates seated, including possibly holding a do-over primary on June 3.

Gary Green, 25, of Detroit, didn’t vote in January but said he’d vote in a second primary if one is held.

“I think that it will give Michigan a real good chance to stand out,” said Mr. Green, one of about 550 people who attended the Clinton rally at the American Federation of State, County and Municipal Employees’ Council 25 offices.

Mrs. Clinton was introduced at the rally by a 20-year-old political science junior from Aquinas College in Grand Rapids, Xavier Lopez-Ayala. He said he voted for Clinton in the January primary, the first time he was old enough to cast a ballot for a presidential hopeful.

“I believed that my vote would be counted and my voice would be heard,” he said. “But that doesn’t seem to be the case.”

The New York senator drew cheers as she challenged rival Senator Obama to agree to new primaries in Michigan and Florida. The hurriedly arranged Detroit campaign stop was intended to dramatize her support for new primaries in both Michigan and Florida, which had its Democratic delegates stripped holding a January 29 primary.

“I am here for one simple reason: To make sure Michigan’s votes are counted,” Mrs. Clinton told the crowd. “You made it abundantly clear that you wanted your voices to be heard and your votes to be counted.”

Despite her visit, chances that the Michigan Legislature would pass a bill setting up a June 3 primary run by local clerks but paid for by private Democratic donors visibly dropped when the Republican-controlled state Senate left for the day without taking up the legislation.

The Democrat-controlled House is scheduled to leave tomorrow on a two-week vacation, leaving only one more day for lawmakers to act if they’re going to give clerks 60 days to set up the election.

Senator Levin, a Democrat of Michigan, and three Democratic leaders who have been working on finding a solution that would get the delegates seated released a statement this afternoon urging lawmakers to pass the measure.

“The Democratic National Committee has indicated that this legislation would meet their requirements for the seating of Michigan’s delegates,” the statement said. “We also believe that passage of this legislation is important to carrying Michigan for our Democratic Party nominee in November.”

The group spent the day on conference calls lobbying Senate and House Democrats to pass the bill.

The Obama campaign has raised a number of procedural and legal questions about the measure.

One of the Illinois senator’s top supporters, Tupac Hunter, a Democratic senator of Detroit, said today that many lawmakers — not just those backing Obama — question whether a re-do would work. He cited concerns about using private dollars to pay for an election and doubts whether the money can be raised.

Despite attempts by Mr. Levin and the others to allay his concerns, he remained opposed to holding a second primary.

“We agree to disagree,” Mr. Hunter said after the caucus meeting.

The office of Governor Granholm of Michigan released a letter from Governor Corzine of New Jersey and Governor Rendell of Pennsylvania listing 10 donors — including Corzine — who are prepared to serve as guarantors that $12 million in private money would be given to the state of Michigan by April 17.

Mrs. Granholm, a Clinton backer along with Messrs. Corzine and Rendell, supports holding a second primary. Asked about the bill’s prospects, a Granholm spokeswoman, Liz Boyd, said only: “Obviously we have another day.”

Even if a do-over plan fails, the Michigan AFL-CIO president, Mark Gaffney, said he expects key Michigan Democratic leaders such as Mr. Levin and a DNC member, Debbie Dingell, who pushed for an early primary to break the monopoly of Iowa and New Hampshire, will work hard at the Democratic National Convention to persuade delegates from other states to seat the Michigan delegates.

“If we don’t get a do-over (election), I for one am confident that the convention can sort it out,” Mr. Gaffney said.

Republicans, meanwhile, used Mrs. Clinton’s visit to point out that she didn’t campaign in Michigan for the January primary, a race she won with 55% of the vote. Mr. Obama and several other candidates pulled their names from the ballot, and none of the Democrats besides Rep. Dennis Kucinich, a Democrat of Ohio, campaigned here.

“She thumbed her nose at the entire state by refusing to campaign here,” the Michigan Republican Party chairman, Saul Anuzis, said in a statement. “Now that Senator Clinton is locked in a tight nomination battle and needs Michigan voters, I suggest they extend her the same courtesy she showed them.”

Mrs. Clinton also said during her Detroit rally that she has the best interests of Michigan and the domestic auto industry in mind. She promised to work with the Detroit Three — General Motors Corp., Ford Motor Co., and Chrysler LLC — in their efforts to compete in the future.

She also said the outcome of the November election may be at stake in the dispute over seating Michigan and Florida’s delegates.

“Every American has a right to be a part of our great Democracy,” Mrs. Clinton said. “Every voice should have the chance to be heard and every vote counted. This goes way beyond this election, and it goes way beyond who’s running.”