Front runner Bernie Sanders, hoping to keep his momentum.

But Joe Biden looking for his first big win on the heels of napping, a crucial endorsement from one of the state's leading figures, Congressman Jim Clyburn.

Mary Bruce is live in Charleston with the state of the race this morning.

Mary.

Good morning.

Good morning, Tom.

Well, this is a make or break moment for Joe Biden, but this morning he is confident that he is the one to beat here on Saturday.

The big question then is, will it make a difference?

Will it be enough to propel him to other big wins?

Or is it simply too late to derail Bernie Sanders?

This'll morning in South Carolina With less than 48 hours to go, Joe Biden is promising a comeback as he fends off front runner Bernie Sanders.

I promise you this.

If you send me out of South Carolina with a victory, there will be no stopping.

Biden is counting on support from African American voters to deliver his first win, the former vice president getting a boost from South Carolina's most powerful Democrat, Congressman Jim Cry Bird.

I know Joe, we know Joe, but most importantly, knows us.

The big question.

Will it be enough to stall?

Sanders is mo mentum, He says Biden doesn't have what it takes to go the distance.

Joe is a friend of mine in a decent guy.

But that is not the voting record or the history that is gonna excite people.

Bring them into the political process and be trouble.

Now this morning, the candidates are already looking beyond South Carolina to those delegate rich states that are up for grabs on Super Tuesday, many of them launching new multi $1,000,000 national advise and already moving on to campaign more aggressively in those states.

Tom, it is crunch time in this race.

All right, Mary, thank you.

As you just mentioned the South Carolina primary right after that, come Super Tuesday, 16 contests, essentially a national primary.

George will be anchoring our special coverage with our political team, starting at 8 p.m. Eastern.

Hi, everyone.

George Stephanopoulos here.

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