I think Rubio is looking for a constituency he can identify.
Marco Rubio is looking out to his next election. Who will elect him and who will donate to his campaign. He is not looking out for the average freeper or average American. He sure as hell wants more Hispanics voting for him a more will with him supporting such amnesty bills and sellouts of the American worker
Lindsey Graham supports such bills for the same reason. He figures he get reelected a few more times before American electorate turns so non-white....he can can personally escape this. Anyways he's in South Carolina is less invaded by immigrants. A Republican Senator in Colorado will be voted out sooner by the increasing Hispanic bloc vote than will Lindsey Graham
Rubio will not have my vote. The Republican party cannot count on my vote further down the ticket.