Jennifer Brigid O'Malley Dillon (born September 28, 1976)[1] is an American former political strategist who chaired Vice President Kamala Harris's unsuccessful 2024 presidential campaign.

[3] O'Malley Dillon served as White House deputy chief of staff for the first three years of Biden's presidency, after managing his 2020 presidential campaign.

[8] When O'Malley Dillon was a child the family relocated from Jamaica Plain to Franklin, Massachusetts, to be closer to her father's job.

[10][11] After the 2016 United States presidential election, O'Malley Dillon chaired the Democratic National Committee's Unity Reform Commission.

[10][11][14] Through Precision, O'Malley Dillon also advised Gates Ventures, a venture capital firm founded by Bill Gates; the Chan Zuckerberg Initiative, founded by Mark Zuckerberg and his wife, Priscilla Chan; General Electric; and Lyft; her deferred compensation and severance from Precision was at least $420,000.

[16] On November 16, 2020, it was announced that O'Malley Dillon would assume the role of White House deputy chief of staff in the administration.

[17][18] In January 2024, it was reported that O'Malley Dillon planned to leave the White House to become Biden's 2024 reelection campaign chair.