I have been in the Big Bend Country of Texas and you can walk right up to the Rio Grande and cross the river. There are no fences what so ever. Looking at the map there are no current plans for any.
The Rio Grande has to be part of that in the next phase...assuming the non whistle blower whistle blower induced fraud of an "impeachment" doesn't turn away too many (I)'s, (D)'s and "suburban women" that voted for Trump last time...causing him to loose re-election.
We also need to take back the House with those that actually support Trump's agenda so-as to fully fund getting all of the wall built, and quickly.