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A Hillary Clinton supporter will have a chance to give a speech on stage at the Democratic National Convention later this month to formally nominate Clinton as the party’s presidential nominee, an honor typically reserved for Democratic officials.

Clinton’s campaign is holding a contest to select the supporter, who will be flown to Philadelphia to speak at the high-profile event.

“We want to make the moment when history gets made reflect the path that brought us to this point -- by doing something that's literally never been done before,” campaign chairman John Podesta says in an email that will be sent to supporters announcing the contest. “We want a supporter to stand onstage in Philadelphia at the Democratic National Convention, give a speech nominating Hillary on behalf of the Democratic Party.”

Related: Overconfidence Emerges as Top Concern for Hillary Clinton's Camp

For a chance to win, supporters have to submit a video explaining what Clinton’s nomination means to them and why they think she should be the next president.

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The campaign will then choose from among the submissions. In addition to the right message, judges are looking for “comfort on camera, charisma” and “a compelling personal narrative,” according to contest rules.

“Tell us your story and why you care about this fight. Learn more about the selection process and submit your video for the chance to be part of history,” Podesta writes.

The campaign has been holding a number of high-profile contests to gin up small-dollar fundraising. In addition to dinners with Clinton, the campaign recently gave away tickets to the see the Broadway hit “Hamilton” with the former secretary of state.

Clinton was declared the the winner of the Democratic primary contest last month after accumulating a majority of delegatee, but will not formally become the party’s nominee until a vote by the nearly 5,000 delegates at the national convention, which will take place from July 25–28.

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With the outcome a foregone conclusion, this formal process is typically used to honor Democratic officials and top allies, like members of congress, prominent activists, or labor union leaders.

In a show of unity in 2008, Clinton famously cut short the convention’s nomination vote, to move that Obama, her former rival that year, be nominated by acclamation. Some Clinton allies hope Bernie Sanders will make a similar move this year.

Clinton’s speech, delivered from convention floor among members of New York delegation, was not technically a nominating speech, but a procedural maneuver. The winner’s nominating speech will be delivered from the stage of the convention.

Winners of Clinton’s contest will also receive receive round-trip plane tickets and one night in a hotel, for an estimated value of $2,500.