May be paywalled, the article, but you'll get the idea from the Xtweet from Leigh Ann Caldwell (WAPO)

New: Democratic donors funding an effort to vet potential VP candidates, including Shapiro and Beshear

Thin-sliced: While Biden ponders and leaders watch the clock, some of the more popular/respected names in the crowd are now being discussed as 'good-fit', popular/strong candidates for #VP spot, ostensibly with Harris at top. Maybe? Soon & sensible?

If so, time now to game out the convention roll-out, "open" & flexible, or maybe Biden taking a bow, a sad goodbye, and passing the torch to Kamala and the DNC's wise choice of VP candidate. "We'll see what happens"™️