Advocates warn not to wait until the last minute.
Early reports indicate the court may uphold the law.
Oral arguments begin Tuesday, with three conservative justices appointed by outgoing President Donald Trump joining the 6-3 conservative court to decide the case.
Wisconsin’s Lieutenant Governor joins demand that the president stop holding events that put lives at risk and normalize unsafe behavior.
Attorney General filed an amicus brief Wednesday in support of the ACA with Supreme Court.
ALL THE LATEST NEWS FROM WISCONSIN