Attorney General Chris Carr joined a 20-state coalition urging a federal district court in Texas to declare that the Affordable Care Act’s individual mandate is unconstitutional and to enjoin the law in its entirety.

“The Affordable Care Act’s design was constitutionally flawed at the outset,” said Attorney General Chris Carr. “Our office has pushed back against this overt form of federal overreach from the beginning, and we will continue to work with other states to see that it is resolved in a way that protects the interests of our citizens.”

The complaint, filed late Monday, explains that the ACA, as recently amended, forces an unconstitutional and irrational regime onto the states and their citizens.

In NFIB v. Sebelius, the United States Supreme Court narrowly upheld the core provision of the ACA—the individual mandate—as a “tax.” However, Congress recently repealed the tax penalty tied to that mandate, while leaving the mandate in place. Since the Supreme Court has already held that Congress has no authority to impose such a mandate without invoking its taxing power, the ACA is unconstitutional.