I think it was Bongino explained this once but its true. Government power more often than not revolves around saying no. See you tell someone no you can't do XYZ... then that person has to jump through a hoop or pay you to be allowed to do whatever it is they want to do.

If you are in the Majority all you can do is say yes to your own party leaders. But if you are in the minority or if its a nice even 50/50 split(but the other party has POTUS) then their is power in saying yes for profit instead of no.