Democratic Minnesota Attorney General Keith Ellison filed a preemptive lawsuit Tuesday against Republican President Donald Trump seeking to block his administration from acting against Minnesota in the way it’s taking on Maine under a federal push to ban transgender athletes from girls and women’s sports.

The lawsuit sets the stage for another legal battle over the issue after the government sued Maine for its refusal to ban trans athletes.

A new lawsuit filed Tuesday by Minnesota Attorney General Keith Ellison against the Trump Administration alleges they’re bullying vulnerable children for their threats to cut funding due to transgender participation in girl’s sports.