Hawaii Rep. Tulsi Gabbard resigned Sunday as vice chairman of the Democratic National Committee to support presidential candidate Sen. Bernie Sanders.
The Hawaii Democrat told NBC's "Meet the Press" that she trusts the Vermont senator to consider the consequences of any military action.
"I think it’s most important for us, as we look at our choices as to who our next commander in chief will be, is to recognize the necessity to have a commander in chief who has foresight, who exercises good judgment," Gabbard said.
Her announcement follows months of discord with committee members, including Chairman Florida Rep. Debbie Wasserman Schultz.
Gabbard has been critical of the committee’s small debate schedule, which critics say is designed to protect Democratic front-runner Hillary Clinton.
Wasserman Schultz on Sunday issued a statement accepting the resignation that in part stated Gabbard is “a role model who embodies the American ideal that anyone can dream big and make a difference."
Gabbard, a member of the House Armed Services Committee and a military veteran who served in Iraq, also has been critical of President Obama’s strategy for stopping the Islamic State.
She has called for a more comprehensive approach and has criticized the president for not saying the group is engaged in “Islamic terrorism.”
The Associated Press contributed to this report.