https://slate.com/news-and-politics/2020/03/sanders-drop-out-primary-coronavirus.amp
It would be one thing if Sanders still had a plausible path to the nomination. But Joe Biden’s margin of delegates is all but insurmountably wide, and the primaries that remain—in such states as Pennsylvania, Delaware, Ohio, Maryland, New York, and New Jersey—will only widen that lead.
Dropping out now, instead of waiting to suffer the calamity of more double-digit losses, would also allow Sanders to retain some dignity—and, more to the point, political leverage. In exchange for his early concession, he could ask for a half-hour of prime time at the convention (again, if there is one), a few planks on the party platform, a Cabinet slot if he wants one, or an important committee chairmanship if the Democrats retake the Senate.