Senator Doug Jones of Alabama, the most-vulnerable Senate Democrat on the ballot this fall, was an early Biden backer and said having Sanders atop the ticket could be problematic in races like his.
The moderate wing “is where I think most of the Democratic party is across the country,” he said.
But Jones and other Democrats are also saying they will be patient while the race plays out.
“I just think all this front-runner stuff -- we’re now on our third front-runner -- we’ll just have to wait and see,” said Representative Jim Clyburn of South Carolina, which is holding a Feb. 29 primary that will help define the race.
--With assistance from Jennifer Epstein.
This article was provided by Bloomberg News.