A three-judge panel of federal judges has granted the Republican-controlled Wisconsin Legislature’s request to intervene in a redistricting lawsuit brought by Democrats.

A request by the Legislature to intervene in a second similar redistricting case, brought by voting advocacy groups, is pending. The court said its preference would be to consolidate the two cases and asked those involved to show by Sept. 7 why that should not be done.

On Monday, Wisconsin’s five Republican congressmen also asked to intervene in the case brought by Democrats. The congressmen, just as the Legislature did, want the case to be dismissed. The motion was filed by U.S. Reps. Scott Fitzgerald, Mike Gallagher, Glenn Grothman, Bryan Steil and Tom Tiffany.

A third redistricting lawsuit, brought by conservatives, is pending before the Wisconsin Supreme Court, which has not yet said whether it will take it or require it to first go through lower state courts.

The federal court on Friday granted the Legislature’s request to intervene in the lawsuit. It set a Sept. 13 deadline to respond to the Legislature’s request to dismiss the case.

In the order granting the Legislature’s request, the judges said federal courts have routinely allowed state lawmakers and legislatures to intervene in redistricting cases.

All three lawsuits say it’s unlikely the Legislature and Democratic Gov. Tony Evers will agree on new maps, so the courts should be prepared to draw them instead.

“If (Democrats’) prediction is correct, and Wisconsin fails to enact a law establishing new districts before the election, it’s hard to see how this court could proceed without input from the Legislature,” judges James Peterson, Amy St. Eve and Edmond Chang wrote.

Mel Barnes, an attorney with the group Law Forward that brought the other federal lawsuit on behalf of advocacy groups, said she expected the two cases to be consolidated with multiple parties asking for federal courts to draw maps.