LANSING, Mich. (AP) — Legislative leaders reviewed a measure Monday that would set up a do-over June 3 Democratic presidential primary in Michigan.

The draft legislation included language that would set up a public fund to collect private donations for the election, ban voters who had voted in the Jan. 15 Republican presidential primary and keep both presidential contenders Hillary Rodham Clinton and Barack Obama on the ballot.

Florida Democrats, meanwhile, abandoned plans to redo the presidential primary with a mostly mail-in vote. Party leaders there had expressed concerns about the proposal. The party plan was to run a second primary to seat the state's delegates at the August convention.

The Democratic National Committee punished Michigan and Florida for moving up their primaries before Feb. 5, stripping them of all their delegates to the party's national convention this summer in Denver. The two states have been struggling to come up with alternative plans to ensure their delegates are seated.

Michigan now wants to hold a second primary. The campaigns of Clinton and Obama received copies of the primary election bill Monday. Clinton has said she would go along with another primary, but Obama's campaign has raised some concerns.

"A re-vote is the only way Michigan can be assured its delegation will be seated, and vote in Denver' at the party's national convention this summer, Clinton campaign aide Harold Ickes said Monday. "If the Obama campaign thwarts a fair election process for the people of Michigan, it will jeopardize the Democratic nominee's ability to carry the state in the general election."

Joel Ferguson, one of Clinton's Michigan co-chairs, noted that "neither campaign should have veto power" over a second Democratic primary.

Obama campaign spokesman Tommy Vietor criticized Clinton for trying to change the rules, but didn't rule out a do-over election.

"We received a very complex proposal for Michigan re-vote legislation today and are reviewing it to make sure that any solution for Michigan is fair and practical," he said. "We continue to believe a fair seating of the delegation deserves strong consideration."

DNC spokeswoman Stacie Paxton didn't comment on the actions in Michigan or Florida, saying only that "we will continue to work with both Florida and Michigan to come to a solution that's fair and within the rules."

The proposed bill would allow Michigan Democratic Chairman Mark Brewer to put the candidates' names on the ballot and would not give them a way to remove their names, as Obama did in the Jan. 15 election. Many of his supporters ended up voting for Uncommitted.

The Democrat-led House is scheduled to leave for a two-week vacation Thursday, so any bills to set up the do-over primary need to be brought up quickly. The measure also would have to be approved by the Republican-controlled state Senate. To be given immediate effect, the measure would require a two-thirds vote in both the House and Senate.

To go forward, any plan also would require the approval of the two campaigns, the Democratic National Committee, state party leaders and Gov. Jennifer Granholm, who is backing Clinton.

The contest must be held by June 10 for the results to count under DNC rules. Local clerks could still hold school-related elections in May, which could result in some locations having both May and June elections. Michigan's primary election for nonpresidential races takes place Aug. 5.

Voters would have to sign a statement that they hadn't voted in the Jan. 15 GOP primary to be eligible to vote June 3. That would effectively keep away from the polls Democratic voters — most of them non-Clinton supporters — who crossed over to vote in the GOP primary because Clinton was the only major candidate on the Democratic ballot.

Michigan Sen. Carl Levin, a backer of moving Michigan's primary to Jan. 15, told reporters Monday in a conference call from Kuwait that he hoped state lawmakers would approve a bill "that makes it possible for there to be a clear decision on this among Democratic voters."

"Of course it's not the only solution," said Levin, who has not endorsed a candidate for the nomination. "There's always, if necessary, taking this to the convention. But that's not the ideal solution. That's the second-best solution."

The measure would set up a fund within the state Treasury to receive up to $12 million in cash and other assets from private donors to cover the cost of the election.

If the primary is canceled before May 15 because the party is down to one candidate, the fund would reimburse the state and local governments for their costs preparing for the presidential primary and refund the remaining money to donors.

State Sen. Cameron Brown, Senate Campaign and Election Oversight Committee vice chairman, said he's against a do-over election, even a privately funded one.

"A primary funded by special interests, wealthy Democratic donors, or corporations would still require a massive time commitment from our state election officials and county, city and township clerks," the Sturgis Republican said in a release.

The bill also would require school districts to hold school board elections in August or November in even-numbered years and in November in odd-numbered years. Many now hold them in May.

Clinton won both the Michigan and Florida primaries. As her race with Obama has tightened, she has argued the delegates should be seated or new primaries held.

On Monday in Atlanta, federal appeals judges skeptically questioned a lawyer who argued that the national party's decision to strip Florida of its 210 convention delegates was unconstitutional.

Michael Steinberg, a lawyer for Victor DiMaio, a Democratic Party activist from Tampa, said Florida's Democratic voters are being disenfranchised by not being permitted to have their say in the selection of their party's nominee. The action violates DiMaio's constitutional right to equal protection, he argued.

"The citizens of the state of Florida are not being treated equally," Steinberg told the judges.

But Joe Sandler, a lawyer for the Democratic National Committee, said the party has the right to set its own the rules and not seat delegates who refuse to follow them.

"It goes to the heart of the constitutional right of the DNC to determine the best means of selecting delegates to the convention," Sandler said.

Outside the courthouse, DiMaio said he cast his ballot for John Edwards, who has since dropped out of the race, but is remaining neutral in the contest between Clinton and Obama.

"I'm just a little guy trying to get some justice," said DiMaio, a political consultant who serves on the Hillsborough County Democratic Executive Committee.

His lawsuit was dismissed by a federal judge in Florida but the 11th U.S. Circuit Court of Appeals agreed to hear an expedited appeal. It was not clear when the court would rule.

Sandler said the suit would be moot if Florida scheduled a re-vote. Steinberg disagreed, saying the Jan. 29 vote should count.

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Associated Press Writer Shannon McCaffrey in Atlanta and Ken Thomas in Washington, D.C., contributed to this report.