U.S. congresswoman Tulsi Gabbard resigned from her position as Vice Chairman of the Democratic National Committee on Sunday, announcing that she quit so that she can support Sen. Bernie Sanders as the Democratic nominee.

“As vice chairman of the DNC I am required to stay neutral in Democratic primaries, but I cannot remain neutral any longer. The stakes are too high.”

Gabbard, an Iraq veteran, defended Sanders on foreign policy issues, saying he “will not waste precious lives and money on interventionist wars of regime change.” She was one of five vice chairs on the committee, has been a part of skirmishes among the other chairs regarding the scheduling of debates lately.

Committee Chair Debbie Wasserman Schultz accepted Gabbard’s resignation on Sunday.