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:

DEAR MARCO….Youve fallen in the RSTABLISHMRNT CESSPOOL!!
BUH BYE
Excellent!
GO BACK TO CUBA U GAY LITTLE , P***K
wtf is wrong with him
Well train them and invite them to your house for dinner with your family.
IT IS WRONG TO ALLOW THESE DAMN MUSLIMS IN THIS COUNTRY DUMBASS!!!!!!!!!!!!
Little Marco when we want to hear you talk we will yank your chain.. Calm down little Marco..
If he doesn’t understand Americans concerns, he’s not ready to be president.
If they are privately owned you don’t have a say…
If I see one on the range I’ll be backing out of there. Their entire religion tells them to kill nonbelievers 108 times their Quran requires and orders them to kill nonbelievers. Don’t let them get the drop on you.