Hillary Clinton Hillary Diane Rodham ClintonButtigieg stands in as Pence for Harris's debate practice Senate GOP sees early Supreme Court vote as political booster shot Poll: 51 percent of voters want to abolish the electoral college MORE will be joined at a Washington, D.C., fundraiser Monday evening by every female Democratic senator bar one: Elizabeth Warren Elizabeth WarrenHarris joins women's voter mobilization event also featuring Pelosi, Gloria Steinem, Jane Fonda Judd Gregg: The Kamala threat — the Californiaization of America GOP set to release controversial Biden report MORE.

While Warren (D-Mass.) would be a major coup for Clinton's campaign given her stature as a leading voice of the party's liberal wing, Warren has not endorsed any of the three Democrats running for president. Warren's nonattendance was first reported by CNN

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Still, the Clinton campaign has a formidable RSVP list for tonight's fundraiser.

Warren, who made news when she met with Vice President Biden when he was considering running for president, is seen as being able to influence presidential politics by her stances.

Attendance at the fundraiser comes in tiered levels, according to the invitation published online by politicalpartytime.org

For $250 a Clinton backer can attend as a "friend" without benefits; while $1,000 qualifies one a "supporter" entitled to a "preferred viewing area"; and $2700 designates one a "champion" and comes with a photo with Clinton.

Event co-hosts who raise $10,000 are invited to a post-event dinner with Clinton and the senators, while hosts who raise $27,000 join the dinner and become members of the Hillstarter program for top Clinton fundraisers.