In aftermath of New Hampshire results, a scramble for black votes

MANCHESTER, N.H. — What’s one thing Bernie Sanders, Pete Buttigieg and Amy Klobuchar all have in common, other than the fact they each had a good showing in Tuesday’s New Hampshire primary?
They all come from mostly white states and have little history of electoral success with black voters. They now have only a few weeks to try to change that.

With the continued decline of Joe Biden’s candidacy, which endured a miserably bad night in New Hampshire, African Americans, a crucial Democratic constituency, may now be up for...