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:

Oh now I understand I looked at your profile you claim to be a gangster bring it
That are pigs we the people don’t want them in USA
Idiot
Oh, yes. We should make sure all of our potential enemies are well trained with firearms before they turn on us and try to kill us. “Morially” we should give them explosives training too.
You moron this is why no one wanted you as president. No I’m not a presidential candidate or even have aspirations of being one. But letting terrorist train at our gun ranges, well just doesn’t make good sense. Do it ?
What the hell are you talking about
Why would a peaceful Muslim want to go to a gun range? That;s the 64 thousand dollar question.
I am not standing with islam. It appears tobe a death cult. Where ever they go people die. The terrorist attacks have been prdpertrated by muslims. Chtistians do not carry bombs and guns io crowded places and kill people
You in america served in america or are you some punk .Who’s Obama’s son. Bloods crypts that no life.
And this whiny pos still don’t understand what happened to him in the GOP primary ? Sad