I know a lot of people here hate him, but he could be a decent Senator. He opposes the Bush wing of the GOP, so he has that going for him.
Hopefully he learned that amnesty was the wrong way to go.
Trump was pushing the GOP to adopt “comprehensive immigration reform” (amnesty) at the same time Rubio got involved with that bill. Trump blamed Romney for being too tough on immigration for his loss. Trump abandoned the idea when he decided to run for President himself.