Sen. Dianne Feinstein: Sanders' Campaign 'All But Over'

California Sen. Dianne Feinstein said Sen. Bernie Sanders' fight for the Democratic nomination is "all but over," adding that the nation would be "better off" if he worked to bridge the party's divides ahead of the general election.

Feinstein, one of the earliest members of Congress to endorse Hillary Clinton, encouraged Sanders to view his campaign from a "real perspective."

"Senator Sanders has the right to run, no question. He ought to be able to read the signposts as well as anybody else, and if he did that he would know that it's all but over," Feinstein told Jonathan Karl in an interview for ABC News' "This Week" that will air Sunday.

"I know the passion of a campaign. I know when you're in it, you just keep go, go, go until the last hour is there. Well, the last hour is close by," Feinstein added.

The California senator, who previously criticized Sanders for delaying Clinton's pivot to a general election showdown with presumptive Republican nominee Donald Trump, today suggested Sanders should work to fortify the Democratic Party before November.

"It would be, I think, a very positive gesture for reconciliation if Senator Sanders were to consider putting his campaign in the very real perspective that it's in, and doing those things that can bring the party together," Feinstein said. "I think the nation is better off if that were to happen."

See more of Sen. Dianne Feinstein's interview Sunday morning on "This Week."