If you're looking for a 'defining moment' where Trump blew his last, best shot on immigration, I'd suggest his signing the "omnibus" budget in Mar., 2018 after expressing misgivings that it didn't fund the wall. He had leverage then-lots of funding in that bill Dems & GOPs wanted
— Mickey Kaus (@kausmickey) April 9, 2019
from Twitter https://twitter.com/kausmickey