Democratic presidential hopeful Bernie Sanders Bernie SandersKenosha will be a good bellwether in 2020 Biden's fiscal program: What is the likely market impact? McConnell accuses Democrats of sowing division by 'downplaying progress' on election security MORE says he's encouraging people to participate in the political process by continuing his campaign.

"I think we are perpetuating the political revolution by significantly increasing the level of political activity that we're seeing in this country," Sanders said in an interview with NPR’s "Morning Edition" airing Thursday.

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"I think it is good for the United States of America, good for the Democratic Party, to have a vigorous debate, to engage people in the political process."

Sanders acknowledged that his path to victory is narrow because rival Hillary Clinton Hillary Diane Rodham ClintonWhat Senate Republicans have said about election-year Supreme Court vacancies Bipartisan praise pours in after Ginsburg's death Trump carries on with rally, unaware of Ginsburg's death MORE holds a substantial lead in the delegate count. He would need to pull off landslide victories in the remaining primary elections and win over more superdelegates to clinch the nomination.

“The path to victory is to do extremely well in the remaining states,” Sanders added.

In delegate-rich California, Clinton leads by 10 percentage points, according to RealClearPolitics.

Sanders won Indiana’s primary Tuesday by a narrow margin, garnering 53 percent of the vote and winning 44 delegates. That victory doesn't challenge Clinton dominance in the delegate race.

Clinton has 1,683 pledged delegates to Sanders’s 1,362, according to The Associated Press.

But Clinton’s lead grows substantially when superdelegates are factored in. She has 522 superdelegates to Sanders's 39, according to the AP. Democrats need 2,383 delegates to clinch the nomination.