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:

Shut up Rubio, you are walking on thin ice!
Hey Marco are you insane?
They have been saying Death to America for awhile now!!!!
Sure they can use the range , they can hold the target boards
Rubio can they use you for a target?
No it aint i hope they get good training so they square your$#%&!@*ass up right in the dome but theres no reason to shoot you you couldnt even beat jeb bush douchebag fck
No ban them from the UNITED STATES
For once in your worthless$#%&!@*life try supporting AMERICANS.
Rubio the liberal elitists.
Rubio is an IDIOT.