Ah, third of the delicates up for grabs and four major candidates still in the race overnight.

Those candidates out campaigning until the last minute.

Joe Biden surging after that big South Carolina win, hoping to overtake Bernie Sanders as a front runner.

Eva Pilgrim is in Dallas, where last night Joe Biden picked up four major endorsements from three of his former rivals.

Good morning, Eva.

Good Morning, Rob, in a show of Unity and Force Pete Buddha, Judge Amy Klobuchar and better or work not just endorsing Joe Biden but traveling here to stand next to him overnight from competitors to a coalition.

Folks, this is a team, in a matter of just hours to of Joe Biden's biggest rivals for the nomination, Senator Amy Klobuchar and Pete Buddha judge becoming two of his most powerful supporters, throwing their support behind Biden, a last minute critical boost judge walking side by side with Biden at a campaign stop after ending his own run.

I'm looking for a president who will draw out what is best in each other, and I'm encouraging everybody who was part of my campaign to join me because we have found that leader in vice president soon to be president and not an electric stage club, which are officially closing her campaign at Biden Rally, calling on voters to come together in support of the former vice president.

If you are tired of the extremes, you have a home with me, and I think you know you have a home with Joe Biden, former candidate Beto O'Rourke also backing Biden.

We need somebody who will fight for democracy here and abroad because democracy is under attack here and abroad.

We need Joe Biden and no question there has been a massive momentum shift.

Now Biden telling me he doesn't need to win today.

But he does need to stay within striking distance.

His campaign saying their goal is to get delegates in every single Super Tuesday state.

Amy All right, even Pilgrim.

Thanks so much.

Hi, everyone.

George Stephanopoulos here.

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