ALBANY – Republican gubenatorial hopeful Bruce Blakeman filed suit Wednesday after New York’s Democrat-controlled Public Campaign Finance Board blocked him from accessing millions in public matching funds ahead of November’s election.

The 51-page lawsuit, filed in Albany County Supreme Court, asks a judge to reverse last week’s bombshell decision that disqualified the Nassau County executive from the state’s 6-1 matching campaign donations due to a paperwork technicality.

The party-line vote to block Blakeman retroactively after initially certifying him for the program in December was “invalid, arbitrary, and capricious,” states the filing, which names the PCFB and the state Board of Elections.

Blakeman could lose up to $4.38 million in publicly matched funds if the courts don’t ultimately overturn the decision.

The vote from the four four Democrats on the seven-member board drew immense criticism from a broad range of New York editorial boards and good government groups such as The Brennan Center, Reinvent Albany and even more traditionally left-leaning orgs like Citizen Union.

Blakeman’s campaign received an email in April alerting him that he had been disqualified from the program because his running mate, Madison County Sheriff Todd Hood, did not file additional paperwork after he was tapped in February.

But the required forms didn’t exist at the time — and still don’t, according to the lawsuit and independent groups.

“To date, the PCF-22 Type 1P Application/Certification Form provides no specific mention of a requirement for gubernatorial candidates to jointly file on single form, nor does it provide any space to do so,” Brennan Center lawyers Marina Pino and Ian Vandewalker also wrote in a letter to the board last week.

This is the first year that candidates for governor are running on a ticket with their running mate instead of being independently elected in the primary and the first time gubernatorial candidates can qualify for public matching funds.

Incumbent Democratic Gov. Kathy Hochul, a notoriously prodigious fundraiser, is sitting on over $20 million between her campaign and the state party as of the end of last year and has turned down participating in the program.

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She gloated over her opponent’s attempt to reverse the boards’ decision in a statement issued through her campaign.

“‘100% MAGA’ Bruce Blakeman doesn’t need any help from us to run an incompetent, losing campaign – and by embracing Trump’s illegal tariffs and enabling ICE’s overreach, he’s ensuring New Yorkers will send him packing this November,” spokesperson Ryan Radulovacki said.

Newsday was first to report the lawsuit Wednesday morning.

“Kathy Hochul tried to rig the system and silence all opposition like they do in third world countries,” Blakeman claimed in a statement to The Post.

“I’m going to make sure Kathy Hochul finally answers for her disastrous record — the highest taxes and highest utility bills in America. The coverups end now.”