Bernie SandersBernie SandersGOP at decisive moment on Planned Parenthood Chaffetz: Threats against lawmakers should be taken seriously Assange bashes Dems: The party ‘is doomed’ MORE on Sunday doubled down on his claim that he sees a path to the Democratic presidential nomination.

Sanders said he expects to do very well in the states voting on Tuesday.

"We got Idaho; we got Utah. We got Arizona," he said on CBS's "Face the Nation."

The Vermont senator trails Democratic presidential front-runner Hillary ClintonHillary Rodham ClintonTrump: 'Why no action' from Obama on Russian meddling? Trump notes 'election meddling by Russia' in tweet criticizing Obama Former Obama advisor calls Fox ‘state sanctioned media’ MORE by 30 points in Arizona, however, according to a RealClearPolitics average of polls. He trails by a narrower margin in Utah but topped the former secretary of State by 2 percentage points in an Idaho poll conducted early last month.

Moving forward, he said he is heading west to Washington state.

"We got Alaska. We have Hawaii. We're then heading to New York," he said.

"We think that the path forward is a pretty good path for us."

He noted Clinton did very well in the deep South, which is not a strong area for Sanders's campaign. But he said he expects to do much better in the future.

"I think, in a couple of weeks, you're going to see us win more states," he said.

"I think as we head to the West Coast, which is probably the most progressive part of America, the ideas that we're fighting for [will resonate with voters] — dealing with the grotesque level of income inequality, a national healthcare system through Medicare for all, raising the minimum wage to 15 bucks an hour."

Voters in those states, he said, are not going to be casting ballots for establishment politics and economics.  

"They want real change. I think we're going to do well there," he said.

He also touted himself as the candidate who does best in general election polls against Republican presidential front-runner Donald TrumpDonald TrumpChaffetz: Threats against lawmakers should be taken seriously Warren cautions Dems against infighting CIA director: Leaks 'seem to be on the increase' MORE. He said he thinks people will "appreciate" that when they look at the polls.