Trump will wait until Ginsburg is out of the picture. With a more reasonable SC, I'm sure he will press the issue of birthright citizenship. Hell, not counting Canada, we're the only developed country that still grants citizenship to these invaders.
My understanding is that Trump may challenge the issue soon in the United States Supreme Court.
Invasion implies (by definition) that people are coming in armed and trying to overtake the government. What we really have are people coming in to work jobs, but they have no intention on becoming citizens.
Trump would be better served to get serious about defunding sanctuary cities since the United States Supreme Court said they are legal. Okay. sanctuary cities are legal. The feds are equally entitled not to subsidize them.