S Democratic presidential race.

The former vice president has scored big wins in four of six states holding contests in the race to select the Democratic nominee, including the largest prize, Michigan.

The results are blow to Biden's rival for the nomination, Vermont Senator Bernie Sanders, although some of his supporters say he still has a slim chance of winning.

Here's what Joe Biden had to say to his supporters.

This election is the one that has character on the ballot.

The character, the candidates, the character of the nation is on the ballot.

It's more than a comeback, in my view, our campaign.

It's a comeback for the soul of this nation.

This campaign is taking off, and I believe we're going to do well from this point on.

Take nothing for granted.

Wanna earn every single vote in every single state?

Well, it last week Super Tuesday, Biden leapt ahead of the delegate count, and now he's patting his lead.

The total count currently stands at 823 for Biden to 663 for Sanders.

The number of delegates reflects popular support in each state, and a candidate needs at least 1991 of them to win the Democratic nomination outright.

Well, our reporter, Peter Bodo Dial has been following the primary all along.

Good to see you this morning, Peter.

A big night for Joe Biden.

But is it enough to not Bernie Sanders out of the race?

Well, we're not quite there yet, but it is certainly hard to see how Sanders bounces back after this.

He went from, you know, front runner to trailing pretty badly in just a few weeks.

Next Tuesday could then sound the death knell of Sanders.

We have 577 additional delegates up for grabs in four states Florida, Arizona, Illinois, Ohio blindness.

A favorite to win in every one of them.

So it is very hard to see how Sanders, but this was an important primary.

Michigan.

Sanders had staked his comeback, his hopes on a comeback on Michigan.

What went wrong for him, right?

I mean, this is this is state that he won, surprisingly, against Hillary Clinton in 2016 Hillary Clinton, not that different of a candidate than Joe Biden.

Um Sanders State hiss his whole campaign in his whole candidacy this year on, you know, being that the person who can bring together Rock Coalition off, you know, white working class voters, black voters, Latino voters, young voters.

For all the fervor we've seen at his rallies, though, those people have not turned out.

Especially young voters have not turned out when it mattered on Election Day biting.

On the other hand, we've seen, you know, a search unlike anything anyone had expected.

We've seen black voters turn out in droves for him.

We've seen, uh, you know, especially suburbanites who really, really crucial here in Michigan, Turnout for bite and you know, is saying people vote with their wallets.

The economy is doing well, So what people are focused on right now is who is the best candidate to be?

Trump that, for them, seems to be biting.

That's my next question, given that Biden does have a commanding lead.

Can we expect the Democrats to come up with a common strategy now, rallying behind Biden to beat Trump this awfully optimistic questions he's, you know, he's racked up a long line of endorsements from, you know, especially a lot of the candidates who dropped out of the race just most recently.

Yesterday we saw Entry Yang, for instance, who many thought would maybe side with Sanders.

He went for Biden.

Not a lot of support left in the Democratic Party.

You know, the establishment for Sanders and S.

So that does not bode well for for Sanders.

Definitely.

It bodes well for biting.

The problem is that a lot of people on the left are not excited about mine.

I spoke to a lot of Sanderssupporters say they simply can't see how they can back a guy like fighting.

What about the Corona virus that has exploded in the middle of this campaign?

Isn't making itself felt on the campaign trail?

Well, we've definitely seen them scaled back the campaigns.

Both Biden in Sanders have called off rallies Tuesday evening.

There's Ah, debate coming up on Sunday.

That's been it's not been cancelled, but it's going to help without a live audience.

But turnout itself does not appear to suffer, so I think essentially what we're seeing is you know, the desire to be Trump is for now, at least as big as the desire to be a rota virus.