Further, states have, almost from the beginning, opposed these monuments. Wyoming challenged Jackson Hole in the 40s, Alaska challenged Carters monuments in 1980, and Utah challenged Grand staircase in 2004. They all lost, with the courts upholding the monuments. Ultimately the more sign-off you need on something, the longer it takes for action. in the case of the Act, it's designed for quick action, something impossible if the states and Congress have to sign off too. Congress is free to create monuments on its own, and the president must be free to act if Congress cant or wont.Otherwise, nothing gets done. It took Congress 40 years to do anything on Boulder White Clouds, and they  only did so because Obama was going to create a monument there. It should not take 40,80 or 100 years for action on those places. But if you limit presidential authority, you basically preclude new monuments because Congress isnt going to  create new monuments, nor are the states.History is very clear there