Marco Rubio continually loses his way and forgets that the main stream of American society is feeling alienated and disenfranchised. And it seems that Rubio can be bought and will change, chameleon-like, depending on who he is talking to and what he hopes to benefit from them.
Of course, the biggest mistake he made is with the Gang of Eight and the amnesty program. He made common cause with Democrats who want lots of new Latino voters who will be Democrats for life if they are given amnesty. He did this to unite with big business, which means donors, who want cheap labor. He ignored the fact that millions of illegal immigrants are flooding the country, taking jobs that Americans will do, taking lots of government services, and disrupting societies and standards. There is no attempt to assimilate, only to impose. Rubio later tried to explain after it cost him his credibility, but he was caught lying. His believability has sunk to new lows, and now he has decided to throw in with another group that is not interested in assimilating. He is simply digging a bigger and bigger hole.
Rubio against U.S. citizens again, page 2:

Hhhhh the babile said kill too u ar racist an u need to see a doc i feel realy bad for u
It’s because there are A LOT of ignorance these days. That or nobody really cares. One or the other. Only a handful of us Americans actually realize the threat
Gaith go$#%&!@*yourself
Rubio is a$#%&!@*
So a flaming$#%&!@*is talking about morals and right vs. wrong? The mind boggles!
And learn to spell while you’re at it ☺️
Ban Christians an destroy. Church in other country fr bro
You sir are an asshat!
WOW, I thought we were going to use them as TARGETS!
I have no objection to muslims at gun ranges, as long as they’re down by the backstop.