Sen. Bernie Sanders Bernie SandersNYT editorial board remembers Ginsburg: She 'will forever have two legacies' Two GOP governors urge Republicans to hold off on Supreme Court nominee Sanders knocks McConnell: He's going against Ginsburg's 'dying wishes' MORE (I-Vt.) says thousands of followers have responded to his cry for grassroots activists at the state and local levels.

The Democratic presidential candidate on Friday said in a statement that nearly 11,000 supporters have voiced interest in running for office or volunteering in their communities.

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The total includes nearly 6,700 people who have signed up at BernieSanders.com/win, is a website that promises aid for people interested in learning more.

“[It’s] extraordinary,” he said of the response. "This will be part of transforming our country from the bottom up.

“I have no doubt that with the energy and enthusiasm our campaign has shown that we can win significant numbers of local and state elections if people are prepared to become involved.”

Sanders on late Thursday refused to concede the race to presumptive nominee Hillary Clinton Hillary Diane Rodham ClintonJeff Flake: Republicans 'should hold the same position' on SCOTUS vacancy as 2016 Momentum growing among Republicans for Supreme Court vote before Election Day Warning signs flash for Lindsey Graham in South Carolina MORE.

“Election days come and go,” he said in a live video message to backers. "But political and social revolutions that attempt to transform our society never end.

“That’s what this campaign has been about over the past year. That’s what the political revolution is about and that’s why the political revolution must continue into the future.”

Sanders additionally criticized the Democratic National Committee for failing to adopt a “50-state strategy.”

“We can no longer ignore the fact that, sadly, the current Democratic Party leadership has turned its back on dozens of states in this country and has allowed right-wing politicians to win elections in states with virtually no opposition — including some of the poorest states in America. This is unacceptable.”

Sanders’s campaign on Friday said 900 legislative seats have been lost to Republicans nationwide since 2009. Republicans now control 31 state legislatures, it said, and both the governorships and statehouses in 23 states.

Sanders’s camp added that the 6,685 supporters who had signed up on its website cover 51 percent of state house districts, 69 percent of state senate districts and every congressional district in America.