Colorado is joining at least nine other states in suing to block federal health care legislation.
Republican Attorney General John Suthers said Monday he will join the suit, despite the objections of Democratic Gov. Bill Ritter.
Suthers said the bill's requirement that most Americans buy health insurance or be subject to fines is an unconstitutional expansion of the federal government's powers.
He says Congress has the right to control interstate commerce but can't force people to participate in commerce.
The other states involved in the lawsuit iclude Michigan, Texas, Florida, Alabama, Virginia, Pennsylvania, Nebraska, South Dakota, North Dakota, and Washington.
Suthers said his decision isn't politically motivated. Republican state lawmakers urged him to join the lawsuit earlier in the day but Suthers said he didn't meet with them to reach his decision.
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