Tonight on PBS

PBS news weekend, primary day for Republicans in South Carolina.

How will the results affect former governor

Nicki Haley's fight for the nomination?

Then the growing problem of social disconnection

and loneliness and its effect on Americans' health.

It's the same risk of premature death

of smoking 15 cigarettes per day, which is wild.

On the mental health side, it increases anxiety,

suicidality, and depression.

There's also evidence of a 50% increased risk of dementia.

And as Ukraine marks the second anniversary of the war with Russia,

how the conflict is affecting its people and what lies ahead. Good evening I'm John Yang.

South Carolina voters went to the polls today in the Republican presidential primary.

Former President Donald Trump looking for his fourth straight primary season win

and former Governor Nicky Haley trying to avoid a home state embarrassment.

After Haley voted with her family on Kiowa Island

this morning reporters pressed her on the future of her campaign.

So we'll keep taking it one state at a time. That's our goal is just one state at a time.

I know everybody else wants to look ahead. That's

not how I've done any of this. In the past year we've taken it one state one month at

a time and focused on that. That's what's gotten us to this moment.

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