From NYT.: “Stanley Greenberg, a Democratic pollster, said he was skeptical of Mr. Sanders’s ability to repeat his 2016 Michigan win, or his chances elsewhere in the Midwest, because Democrats this year, who singularly want to beat Mr. Trump, are less open to revisiting arguments over trade or Social Security.

“Voters, astonishingly, have taken over the nominating process,” he said. “Biden did well among blacks, suburban whites and white working-class voters because they want him to take on Trump. That was so powerful on Super Tuesday.”

By the end of the day, we will find out if Greenberg is right.