The thing of it is that a future president can simply order the head of the EPA to simply undo the damaging regulations yet it seems that once a regulation is in place that it stays no matter what or who gets in office.
Not without doing a pretty thorough housecleaning first - there are enough hard-core leftists that many will resist and continue the illegal ways; remember how some folks refused to be fired by Bush?
Firsts we have to get a president in the WH that might be prone to making such a move - many here are already down to Cruz or nobody which doesn't bode well for our side. Then they have the lunatic thoughts that if we don't get Cruz, it's because the GOP didn't learn its lesson and still needs to be punished - some are ready to punish the GOP until Freedom is long gone and no longer a dictionary entry.