Pennsylvania Gov. Tom Wolf on Wednesday blasted Republican lawmakers for pushing to impeach state Supreme Court justices who ruled that the Keystone State’s congressional districts were unfairly gerrymandered on partisan lines.

“This is an unprecedented and undemocratic attempt to retaliate against the judicial branch,” Wolf, a Democrat, said in a statement. “The legislature should be helping people, not settling personal grudges. This is nonsense and a waste of precious time and resources.”

Twelve Pennsylvania GOP lawmakers on Tuesday filed legislation to remove four of the five Democratic justices on the court — David Wecht, Christine Donahue, Kevin Dougherty and Debra McCloskey Todd — for “misbehavior in office.”

The court in January voted 5-2 on party lines to strike down congressional maps drawn in 2011, determining that they were so gerrymandered in Republicans’ favor that they violated the state constitution and needed to be replaced before the May primary. The map has typically given Republicans 13 out of 18 congressional seats, even as they have won around 50 percent of the statewide vote.

After lawmakers failed to meet a court-imposed deadline to negotiate new maps with the governor’s office, the court ordered that its own map, drawn by an outside expert, be used.

That decision inspired a federal lawsuit from Pennsylvania Republicans, who also made two unsuccessful appeals to the U.S. Supreme Court to block the court-drawn map.

It also prompted Rep. Cris Dush (R) to kick off the impeachment charge, rallying other GOP lawmakers to back his legislation calling for the justices’ ouster. Backers of the measure say the court overstepped its judicial authority by imposing new district lines. Justice Max Baer, the court’s fifth Democrat, escaped an impeachment resolution because he said the current map could stay in place until 2020.

It’s unclear how much support the impeachment push has in the GOP-controlled legislature.

“I have not heard much from leadership on the matter nor all that much from my colleagues,” Rep. John McGinnis, one of the Republican co-sponsors, told TPM in an email.

The public response has been similarly mixed, according to McGinnis: “Reactions I received from the public split between those grateful for my action and those accusing me of being a fascist.”

Senate President Pro Tempore Joseph Scarnati (R) and House Speaker Michael Turzai (R), who led the federal lawsuit against the new maps, did not immediately return TPM’s request for comment on the impeachment resolutions.

A spokesperson for Turzai told the Huffington Post on Tuesday that leadership still needed to survey members about the resolutions and review evidence, and that the decision would not be “taken lightly.”

Removing justices would require a two-thirds vote in the state Senate, where Republicans control 34 of the 50 seats.

As controversial as this proposal may seem, Pennsylvania Republicans on Capitol Hill have said it deserves consideration. Rep. Ryan Costello called the new map a form of “judicial activism” worthy of impeachment. And Sen. Pat Toomey said impeachment was a “conversation that needs to happen.”