DENVER -- Hillary Rodham Clinton and Barack Obama worked out a convention city deal to limit the divisive roll call for president, a step toward an uneasy alliance of former rivals and their still-bitter supporters.

Democratic officials involved in the negotiations said the deal would let a few states cast votes for Clinton before a move to declare Obama the nominee by acclimation.

Still, she told supporters she would cast her own vote for Obama and said, "We were not all on the same side as Democrats, but we are now."

The voting could perhaps end with New York, when Clinton herself would call for unanimous nomination of Obama from the convention floor, Democratic officials said. The officials spoke on condition of while the deal was being finalized.

Obama said he isn't involved in negotiations over the roll call and is letting campaign manager David Plouffe work out the details with the Clinton team.

An official familiar with conversations between the Obama and Clinton camps said Hillary Clinton fully realizes it would hurt her politically to be seen as anything other than 100 percent behind Obama. Bill Clinton "is not as far along" in reconciling himself to his wife's loss, said the source, who would speak only on condition of anonymity because private conversations were involved.

However, the former president wants to give the best possible speech he can on Wednesday night, and is eager to draw sharp distinctions between the policies and visions of Obama and McCain. Clinton is in discussions with Obama aides as to how broad the speech should be, the source said.

Campaigning in Iowa, Obama told reporters the Clintons "couldn't have been more clear" in their support for his candidacy and the Democratic convention would help produce the party unity needed to bring victory in November.

Not everyone was getting the message, with some Clinton supporters refusing to back Obama and others saying they've felt unwelcome in Denver. Susan Castner, a Clinton delegate from Portland, Ore., said six people insulted her as she walked alone down the street Saturday night wearing a Clinton T-shirt, telling her to take it off and calling her a profanity.

"I know this is not coming from Barack Obama, but his supporters are helping us decide who to vote for" in November, Castner said. "I hate the feeling that you shouldn't wear your Hillary gear unless there are two or three of you together."

Kathleen Kennedy Townsend, the eldest child of the late Robert F. Kennedy and a former lieutenant governor of Maryland, said the animosity that some Clinton delegates feel toward Obama "is getting worse." Townsend, a Maryland delegate, was a strong Clinton supporter but now is fully behind Obama. She said she partly understands why some of her colleagues have not joined her yet.

"There's a moment that you want to enjoy your bitterness," she said.

It was not clear whether there would be floor demonstrations for Clinton after her name was placed in nomination, a spectacle that could detract from Obama's political coronation.

Clinton said she would not instruct her delegates how to vote, and many will probably vote for Obama. Others, she said, "feel an obligation to the people who sent them here that they were elected to represent."

Mary Boergers, a Maryland delegate, scoffed at the notion that suppressing the Clinton roll call would help show solidarity behind Obama.

"To try to suppress the celebration that we all want to have about her achievements is what would tear this party apart," she said.

Worried about that exact scenario, the Obama and Clinton teams have held tense negotiations over how the convention will unfold. As part of the compromise the New York senator will be the headliner Tuesday night. Her husband, former President Clinton, will speak Wednesday -- part of her request that he be on a separate night, negotiators said.

The dealmaking indicates the divided nature of the party -- Obama does not have full control over a convention that includes many delegates who are enthusiastic Clinton supporters. But both senators have an incentive to help make peace between their opposing sides -- Obama so he'll have their backing in November and Clinton so she'll be well positioned for a future run.

The split pales in comparison to past political convention battles like the 1980 fight between Jimmy Carter and Ted Kennedy. President Carter beat him in the primaries, but Kennedy supporters tried to take away the nomination at the New York convention. Kennedy didn't have the votes for the nomination, and at the convention finale he shunned the hugs and clasped hands that are customary at adjournment.

Some Clinton supporters were not interested in compromise. "I don't care what she says," Boergers said.

House Speaker Nancy Pelosi, who is chairwoman of the convention, said there should be a full roll call vote.

"I can't imagine not going into a convention and hearing 'Alabama!' and the whole world looking up to see what comes next," she said. "But as typical of these roll calls, at a certain point, somebody has the votes and the protocol and graciousness come through and that will have its own dynamic."

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Associated Press Writers Charles Babington, Stephen Ohlemacher, Scott Lindlaw and Devlin Barrett contributed to this story.