I'd like to see some discussion of the border wall and what the objections to it are.

Trump himself has said its not going to be 2,000 miles long, that other measures make more sense in mountainous or remote areas.

I've seen people wading or swimming across the Rio Grande and then climbing over or under chain link border fences within 100 yards of an official border bridge. In other places you can wade across or, in my case, we paid a guy a buck to row us across. The southern border is very porous and is used by drug smugglers and terrorists in addition to illegal aliens. Border barriers have existed virtually everywhere in the world but on the US/Canadian border.

What are the objections?