Nebraska's head prosecutor filed a federal suit last week against new rules that allow transgender students access to bathrooms and changing rooms matching their identity.
Nebraska Attorney General Doug Peterson asked a federal judge Friday for an injunction against an earlier guidance from the Justice and Education departments instructing states that transgender students are protected under Title IX of the Civil Rights Act.
That means transgender students are protected from sex discrimination--as the Obama administration interprets the law.
Peterson isn't alone. Nine other states--Arkansas, Kansas, Michigan, Montana, North Dakota, Ohio, South Carolina, South Dakota, and Wyoming--have joined the lawsuit.
Combined with the lawsuit filed by Texas Attorney General Ken Paxton, that make 21 states suing in opposition to transgender student rights.
Meanwhile, a separate case in Virginia involving a transgender male student might head to the Supreme Court after the school board lost in federal appeals court. The school board, which is trying to keep teenager Gavin Grimm from using facilities matching his gender identity, has filed for writ of certiorari before the country's highest court.