"Sen. Clinton is 100 percent committed to helping Barack Obama become the next president of the United States," Strand added. "She is very appreciative of the continued commitment of her supporters and understands there are passionate feelings around the convention. While no decisions have been made at this time, they will be made collaboratively with Sen. Clinton and her staff, the DNC and Sen. Obama's campaign and released at the appropriate time."
Sources close to both Obama and Clinton told ABC News that the New York senator is highly unlikely to allow her name to be formally submitted for a roll-call vote on the convention floor. The Obama campaign wants to avoid such a vote, since it would underscore the party's splits and remind voters of the divisive primary campaign between the two Democrats.
The refusal to publicly announce her intentions is widely seen as a bargaining chip Clinton is holding on to as party officials negotiate logistics regarding her convention speech and other activities, according to several Democrats who are closely involved in the matter.
Clinton plans to hold a Web chat with supporters Thursday afternoon where she might clarify her convention role. In announcing the Web chat, she urged her supporters to continue to stay tuned to her Web site for updates about her convention activities.
But the very fact that details of her convention role remain unresolved less than three weeks before the Democrats descend upon Denver is a fresh sign of the difficulties the party will face at a convention when nearly half the delegates were chosen because of their support for a candidate who will not be the nominee.
History provides little guidance: In the modern convention era, the delegate count for the two leading candidates has never been this close.
Lanny Davis, a longtime friend and supporter of the Clintons, called the idea of putting Clinton's name into nomination a "completely idiotic idea that leads to nothing but party disharmony."
Still, the fact that some Clinton supporters are clamoring for a chance to vote for her at the convention is partly Obama's fault, he said. Davis, who described himself as "100 percent behind Obama" in the general election, said Obama should be doing more -- in symbolic and substantive gestures -- to make clear he values and needs the support of former Clinton supporters.
"It's a reflection of genuine frustration by Hillary Clinton supporters that Sen. Obama seems to have forgotten about 18 million voters," Davis said. "My concern about Sen. Obama is he doesn't recognize that the outreach to the Clinton grass roots has to be more visible, more overt, as well as more symbolic."
The two camps have worked cooperatively on a draft of the party platform, and Clinton is set to hit the campaign trail for Obama on Friday, appearing by herself at an Obama event in Nevada.
The campaigns also issued a joint statement late today, reiterating that there is no division.
"We are working together to make sure the fall campaign and the convention are a success," the joint statement said. "At the Democratic Convention, we will ensure that the voices of everyone who participated in this historic process are respected and our party will be fully unified heading into the November election."