Vermont Sen. Bernie Sanders is unfazed that no one in Congress is backing his underdog presidential bid, noting that the Democratic establishment is firmly backing Hillary Clinton.

"I think it's clear to say that Clinton is the candidate for most members of Congress and the Democratic establishment," Sanders said on CNN's "State of the Union" Sunday.

The Vermont independent has served in Congress since 1991, first as a House member and then as a senator. But that experience hasn't gained any help so far on the campaign trail as no member of Congress has endorsed him.

But Sanders downplayed the absence of endorsements by noting that Clinton has extensive ties to Democrats in Congress.

Read more on WashingtonExaminer.com