Waiting for Biden: Why the 2020 Field Is Incomplete Until He Decides

The Democratic presidential field for the 2020 election is taking off with remarkable speed. But the shape of it isn't really known because we don't know if Joe Biden will announce a bid yet. WSJ's Gerald F. Seib explains. Photo: Getty

from WSJ.com Video - News https://on.wsj.com/2SBHUZv