Staten Island DA Dan Donovan, who launched his AG campaign last weekend and headed out for his first-ever upstate swing, has already garnered sufficient support to get him on the ballot at the GOP’s upcoming convention.

Donovan’s campaign just announced he has received endorsements from 12 GOP county chairs who together account for 27.57 percent of the weighted convention vote, putting him comfortably past the 25 percent mark necessary for ballot access.

The counties in question are: Montgomery, Erie, Niagara, Queens, Schoharie, Saratoga, Greene, Rockland County, Albany, Bronx, Kings and (Donovan’s home) Richmond.

“I am thrilled and gratified to receive the support of these 12 counties and their distinguished chairs,” said Donovan in a press release.

“New Yorkers from all parts of our state are tired of the status quo in Albany; frustrated with the dysfunction; and angry at the waste and corruption that’s become commonplace in our Capitol. It doesn’t matter if you live in Brooklyn or Buffalo, these frustrations are universal.”

“As attorney general I’ll work tirelessly to root out the corruption plaguing this state and return integrity and people’s faith back into our government.”

This does not bode well for Onondaga County Comptroller Bob Antonacci, who was considering a run for state comptroller, but then changed his mind and announced his intention to enter the AG’s race.

In a statement released May 18, Antonacci said he had received “much encouragement” from several upstate regional chairs of the state GOP.

Before Donovan formally announced his candidacy with his biggest supporter, Mayor Bloomberg, by his side, Ontario County GOP Chairman Jay Dutcher, who is the regional chair for the Finger Lakes region, sent out an e-mail urging his fellow leaders to join him in calling on Antonacci to run for AG.