Supporters of Bernie SandersBernie SandersRepublican spin on Biden is off the mark Sanders on Medicare expansion in spending package: 'It's not coming out' Briahna Joy Gray: Biden must keep progressive promises or risk losing midterms MORE expressed outrage and suspicion after reports of an email sent to Hillary ClintonHillary Diane Rodham ClintonSuper PACs release ad campaign hitting Vance over past comments on Trump I voted for Trump in 2020 — he proved to be the ultimate RINO in 2021 Neera Tanden tapped as White House staff secretary MORE supporters with an image labeled "secret win" surfaced shortly after The Associated Press said she had secured the Democratic presidential nomination.

The AP based its declaration on its own delegate count, including superdelegates. But Sanders supporters say that is unfair because the unbound party leaders could potentially switch their support at any time in the weeks leading up to the Democratic National Convention in July. 

Many Sanders supporters have voiced suspicions that Democratic Party leaders have rigged the primary against him to make sure Clinton wins the nomination.

Actor Tim Robbins, an outspoken Sanders supporter, blamed his loss in the New York primary on voter fraud, saying the “election is being stolen."