Jason Stein:

Members of state teachers unions sued Thursday to block part of a law giving Gov. Scott Walker veto powers over rules written by other state agencies and elected officials.
The lawsuit is the latest in a series of legal skirmishes between the GOP governor and public employee unions.
In the case, parents of students and members of the Wisconsin Education Association Council and Madison Teachers Inc. challenge the law for giving Walker the power to veto administrative rules written by any state agency. That law wrongly gives Walker that power over the state Department of Public Instruction headed by state schools superintendent Tony Evers, the action charges.
“The state constitution clearly requires that the elected state superintendent establish educational policies,” WEAC President Mary Bell, a plaintiff in the suit, said in a statement. “The governor’s extreme power grab must not spill over into education policy in our schools.”
The measure, which Walker signed in May, allows the governor to reject proposed administrative rules used to implement state laws.