Transcript for Which states vote on ‘mini Super Tuesday’
So. It's being viewed as a mini Super Tuesday. Idaho Michigan Mississippi Missouri North Dakota and Washington State all heading to the polls. 352. Delegates up for grabs. I. Joseph Biden today making a course in Detroit stopping by the new Fiat Chrysler assembly plants and I. The former vice president coming off a string of big. Wins on last week's Super Tuesday. Were racking up new endorsements from his former rivals. I am so route. Beyond Joe's team because she know it only hurts me we will elect until. And my. In tonight's primaries will help and solidify his lead while Bernie Sanders who's trailing Biden in the delegate count is hoping for a comeback. The Anders won Michigan and when he sixteen pulling a major upset over Hillary Clinton that showed his strength among white working class voters. But on Super Tuesday Joseph Biden won that demographic you. The robbery of the differences. Find it. Those campaigns determined to keep going added that corona virus outbreak. In Missouri election officials speaking extra precautions. They want voters to make sure that their washing their hands before and after about me. In Washington State the center of the crisis here in the US officials are urging voters not to link their mail in ballot envelopes. Instead recommending voters use water or a sponge to seal them. Here in Michigan there are actually no reported cases of corona virus yet tonight but Sanders and Biden will be in Ohio. For voters head to the polls in that we. And as elegant hair ABC news in Detroit news.
This transcript has been automatically generated and may not be 100% accurate.