State Republican Party Chairman Ed Cox accused New York’s chief judge of stacking an important judicial screening panel with “partisan Democrats” — violating the spirit of the law requiring political balance.

The state constitution states that no more than two of the four members on the Commission on Judicial Nomination — appointed by either Chief Judge Rowan Wilson or Gov. Kathy Hochul — can belong to the same political party.

“New York’s court system was once the most respected in the nation. Thanks to Judge Wilson and one-party Democrat rule, our courts have been hopelessly corrupted,” state GOP Chairman Ed Cox said.

The judicial screening panel recommends candidates to the governor for service on the Court of Appeals, the state’s highest tribunal.

Wilson recently appointed lefty activist actress Cynthia Nixon to the judicial screening panel, raising eyebrows, The Post previously reported.

Two of Wilson’s four new appointees, Nixon and former Court of Appeals Judge Eugene Fahey, are registered Democrats.

He also appointed Joshua Silber, the founding partner of a Manhattan law firm specializing in medical malpractice and personal injury cases, to serve on the judicial screening panel.

But about a month before his May 1 appointment, Silber, a Democrat and donor to Democratic candidates, purged his entire voter registration record in New York, the Times Union reported.

Silber then re-registered to vote on July 14 as an independent, not enrolling in a political party.

“Judge Wilson already made a farce out of this important committee by appointing ‘Sex in the City’ actress Cynthia Nixon,” Cox said. “Now, he is giving New Yorkers a master class in Albany corruption.

“His latest pick is a lifelong Democrat who had his voter registration history ‘purged’ to appear ostensibly as an independent, circumventing the State Constitution’s requirement for political balance.”

Along with Silber, another appointee, nonprofit executive Ann-Marie Foster, also was not enrolled in a political party when she was picked.

Wilson, via a spokesman, defended his appointment as proper and lawful.

“At the time the Chief Judge sent his appointment letter to the Governor’s Office on May 1, Mr. Silber was not enrolled as a Democrat,” said Al Baker, a spokesman for the state Office of Court Administration.

“At no time prior thereto did either the Chief Judge or his staff suggest to, or encourage, Mr. Silber to de-enroll from the Democratic Party.”

Silber declined to comment.