But only half of Republicans say they’d get vaccinated. Trump, who holds enormous sway with his base, could theoretically reach some of those people.

The other side: Trump has not been a reliable source of pandemic information over the last nine months, and that’s led to some skepticism that his involvement would be helpful.

“Respected public icons — and Trump is not one of them — are going to be important to persuade the public to take safe and effective vaccines. But they have to know what they’re talking about,” said John Moore, a professor at Cornell University.

What we’re watching: The Department of Health and Human Services is launching a $250 million public health education campaign, part of which will focus on vaccine acceptance.