You may be confused, because Rubio plagiarized Trump. TRUMP: Undocumented Workers Can Stay ... BUT ONLY IF THEY WORK HARD (Rubio infringes Trump intellectual property)
Son of a gun, first I’ve seen of that...I was a bit out of it due to family issues right at that time (a close relative died almost exactly then). So it looks like Trump did join Cruz and a few others in coming around on immigration. Hasn’t been brought up much since, I guess.
Won’t stop me though, all of the others have a motive to lie (i.e., needing Big Money), Trump doesn’t...so he still wins, in my book.