True, but they can cut off funding to the state if it doesn't. They used threats of cutting off highway funds to force states to pass 55 MPH speed limits, and raise the drinking age to 21 when is was 18 in some states.
They sure did. And when Arizona passed some immigration enforcement laws of their own because the Federal government wasn’t doing their job, the courts told them that they couldn’t make their own immigration laws because it was federal jurisdiction.