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:

It’s wrong an immoral to allow Christians on gun ranges
Blow it out your$#%&!@* Rubio. Why do you think you got nowhere in the primaries?
Tell them to live with dumb Rubio.
that’s why this idiot didn’t make it very far in the election.
Stupid idiot. How dumb can our official in Government get? Don’t know how they can get any more ignorant then they are now….
F**k you RINO!
Use some of the radical ones as targets !
And one more think Gaith. Nobody can be racist against a religious group idiot. Religious groups are NOT races. Geez what a stupid asshat
YEAH LET’S GIVE THEM GUNS & PLENTY OF AMERICAN TARGET’S… NOT…
Shut the hell up you sniveling little punk.