Tulsi Gabbard Tulsi GabbardRepublicans call on DOJ to investigate Netflix over 'Cuties' film Hispanic Caucus campaign arm endorses slate of non-Hispanic candidates Gabbard says she 'was not invited to participate in any way' in Democratic convention MORE, the Hawaii Democrat who resigned a leadership post with the Democratic National Committee in order to endorse White House hopeful Bernie Sanders Bernie SandersMcConnell accuses Democrats of sowing division by 'downplaying progress' on election security The Hill's Campaign Report: Arizona shifts towards Biden | Biden prepares for drive-in town hall | New Biden ad targets Latino voters Why Democrats must confront extreme left wing incitement to violence MORE, admitted she was warned against breaking from front-runner Hillary Clinton Hillary Diane Rodham ClintonHillicon Valley: FBI chief says Russia is trying to interfere in election to undermine Biden | Treasury Dept. sanctions Iranian government-backed hackers The Hill's Campaign Report: Arizona shifts towards Biden | Biden prepares for drive-in town hall | New Biden ad targets Latino voters FBI chief says Russia is trying to interfere in election to undermine Biden MORE.

"I'll be very honest with you, a lot of people warned me against doing what I did," the lawmaker told MSNBC on Tuesday night.

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"But this is a very serious issue and what I did speaks to the high stakes that exist. War is a very real thing, its real to me, it's real to our service members and their families."

Gabbard, a veteran, made her surprise decision during a Sunday interview on NBC's "Meet the Press." Her response on Tuesday came after MSNBC's Brian Williams asked her if she's worried about what her life in Congress would be like if Clinton wins.

She warned Clinton's record indicates her leadership would include a future of "more interventionist wars and regime change."

The former first lady won seven states on Super Tuesday, while Sanders won four, a result that will extend Clinton's delegate lead.