If  governments didn't do things even though  they were "Dumb, dumb, dumb", it would be a new experience in human history.

Eminent domain is a call any government body gets to make.  The Supreme Court said a few years ago it was legal to take it from one private party and sell it to another private party just to get a bigger tax base.  

The wall doesn't have to get 'built' to satisfy the Trump voters.   They will see that he is 'doing something' and vote for him again because he is 'doing something' he promised to do.

You really believe that 'environmental hazards' will stop him!  

Snort!  Speaking of delusional!  

This is the guy who just approved the North Dakota pipeline that Obama had stopped for 'environmental' reasons.  The same guy who is cutting the EPA by 32%.

President Clinton prevented a bunch environmentalists from going into Area 51 with the stroke of a Presidential pen.