tulsi gabbard
U.S. Representative Tulsi Gabbard, D-Hawaii, speaks after being awarded a Frontier Award during a ceremony at the Kennedy School of Government at Harvard University in Cambridge, Massachusetts, Nov. 25, 2013. Brian Snyder/Reuters

A top official of the Democratic National Committee on Sunday quit her post to join Vermont Sen. Bernie Sanders' presidential nomination effort.

Rep. Tulsi Gabbard, D-Hawaii, vice chairwoman of the DNC, announced on NBC’s “Meet the Press” she was joining Sanders’ campaign because the country needs a commander in chief “who has foresight, who exercises good judgment, who looks beyond the consequences, looks at the consequences of the actions they’re looking to take, before they take those actions.”

Sanders welcomed Gabbard’s support in a tweet.

Gabbard’s announcement makes her the fourth member of Congress to back Sanders over former Secretary of State Hillary Clinton.

The move came a day after Clinton trounced Sanders in the South Carolina primary. On ABC’s “This Week” and NBC’s “Meet the Press,” Sanders admitted, “We got decimated,” in the balloting. He predicted, however, he will do better than expected in the Super Tuesday primaries, including in Vermont, Massachusetts, Minnesota, Colorado and Oklahoma. Clinton, however, won endorsements Sunday from two Vermont newspapers.

He said the one bright spot in Saturday’s primary was among voters younger than 30.

U.S. Democratic presidential candidate Senator Bernie Sanders pauses while speaking at a campaign rally in Rochester, Minnesota, Feb. 27, 2016, the day of the South Carolina primary. Brian Snyder/Reuters

Sanders goes into Super Tuesday trailing Clinton badly in the delegate count. An Associated Press count gives Clinton 544 delegates, including more than 400 of the 712 superdelegates, to Sanders’ 85. A candidate needs 2,382 delegates to win the nomination. In Tuesday’s primaries and caucuses, Sanders is targeting 288 delegates while Clinton is targeting 571, likely widening her lead.

Polls released by NBC/Wall Street Journal and CBS gave Clinton the edge going into Tuesday’s contests. The CBS poll indicated Clinton has a 20-point lead in Georgia, Texas and Virginia. The NBC/WSJ poll gives her a 2-to-1 edge in Georgia, Tennessee and Texas.