Trump refused to enforce E-Verify except for one noisy factory raid right before the 2018 midterm election.
Trump's immigration statistics - naturalization, Green Cards, and foreign work visas - were higher than Obama's stats, during the three years before Covid.
I do not think Trump will pull a Bush-McCain Amnesty stunt.
On the other hand, he will do nothing consequential to stop other Amnesty plans.
And, if elected, Trump will do nothing consequential to evict the 10 million illegals during his first two years, because the Federal Judiciary will obligingly block him and his corps of woke, Hard Left, DHS lawyers.
Bottom Line - the GOP has had no national leadership on the 40 year massive immigration issue since Reagan signed the 1986 Amnesty.
A big IF.
Right now, I'll say maybe 10% chance of it happening.