A Phoenix-based advocacy group is expanding its legal challenge to the federal health care overhaul.
The Goldwater Institute's original lawsuit filed in U.S. District Court in Phoenix last month challenges the health care overhaul, and now the group is asking a federal judge for a preliminary injunction to block one provision.
The injunction targets a provision that would restrict Congress' ability to repeal a new board that the health care law would create in 2012 to set Medicare policy and health care payment rates.
According to the institute's motion, the motion would restore power to the public's elected representatives.
The federal government faces a 28-day deadline to respond to the request for a preliminary injunction.