Let me start by saying, I'm not Trump. So what I'm suggesting probably wouldn't work however if I were in Trumps place I probably wouldn't see it.
However here is what I'd do if I were in Trumps place.
Nacy will never give in to Trumps wall. Here entire end game is to make sure Trump never gets what he ran on. This facade of "morality" is just a facade. Having a moral objection to the wall yet wanting the borders closed is like having a moral objection to having a microwave yet being ok with eating TV dinners (the ones that have meat in it and tons of preservitives). There is nothing even remotely moral about her position.
What I'd offer is.
1. Compleate shutdown of welfare
2. Make being a sactuary city a federal crime. Permitting the fed to remove the current governmemt void the state charter start over.
3. Make it a fedral crime to hire someone who isn't here legally.
4. Offically declair if Mexico continues to allow the carivans the US will consider it an act of war. Not nessisaraly by Mexico. Giving the preisdent the athority to fill in the details should it become nessisary. Basically a blank check to go to war.
5. Autherization to shoot to kill on the Mexico side of the border.
6. A fedral crime to report inaccurate information under the title "news" be it negligence (failure to make a reasonable effort to get the facts) or fraud (misrepresenting facts already available) this so long as it's called news. This goes for any source calling itself news. It must actually use the word news.Cable News Network, Fox News, Natural News, Real News(this an Infowars brand BTW) all apply. Sargon, Bill O or an editorial brand CNN may have dose not apply. Sure that means CNN might change it's name but then that would raise the point, CNN was never news.
7. Schooling from Grade school to high school to be under the umbrella of federal control not state.
(This is the least contraversal point, hell it's something most of the left has wanted for a long time. Be prepaired for new math.
So why bother? States like California use schools to indoctranate kids with political ideology's. The terrorist group By Any Means Nessisary makes that all too obvous to the point of promoting itself in schools.
This also means shifting the budget to the fed. School budgets are local resulting in impoverished schools not having the budget they need to teach impoverished kids by shifting it to federal schools in poor nehborhoods would have the budget schools in wealthy nehborhoods have so poor kids can access the latest technology, best teaching practices etc.)
All for not getting a wall this budget.
Why this would probably fail is congress could agree to all this and then turn around and sabotog it all.
Elimate welfare then let the courts declair it unconsitutional claiming it's a human right. A human right Mexico dose not have.
Etc. You get the idea. They'd find some way to void everything.
So it'd be better to just do what Trump is doing. In the moment I wouldn't see that. Becase I'm not Trump.