Of course I have no idea. But seems to my simple mind that it could happen fast, Trump is a many who likes things done fast, well, and without waste of money. I think there will be a big coattail effect and Congress will not be obstructionist.
Let's hope that's true. It's what Trump campaigned on as his strength.
He can start with the wall. He'll work with the labor unions to create jobs in the area. And not just for building the wall. They'll also need new roads to get there, power lines for the job sites, sewage, office buildings, restaurants to feed the workers, housing for the families, security... You name it. Not only will the wall be good for the country, but the jobs will be good for the struggling border communities, too.
Then he can parlay that progress into the manufacturing sector.
-PJ