Originally Posted by SweetHome_Bama
They have no authority granted by the constitution to do so. The constitution then states all powers not vested to the federal government via the constitution are the domain of the states and the people.
States have exercised their power to regulate their respective boxing commissions.
I think a more grounded solution would be for various states, California, Nevada, Florida, and etc. to make a united commssion, but you would have problems with people breaking it for big money fights.
The federal government has regularly skirted that in the past using some generality. I forget exactly what it is now but is some weakly worded phrase and is responsible for a lot of federal regulation.