WELL, YOU JUST DID, DUMBASS: “‘There are American workers who, for lack of a better term, can’t cut it,’ a Rubio aide told me. ‘There shouldn’t be a presumption that every American worker is a star performer. There are people who just can’t get it, can’t do it, don’t want to do it. And so you can’t obviously discuss that publicly.’”

Rubio has killed himself with his base through a classic example of hubris and Freshman overreach. He could have gotten behind an immigration bill, but getting behind this immigration bill, another cooked-up-in-a-backroom you’ve-got-to-pass-it-to-find-out-what’s-in-it monstrosity was a mistake. His second mistake, and the really fatal one, has been expressions of contempt toward his base. Suggesting that people who don’t support his bill are racist, and that American workers are dumb, is political poison. And his staff should know better than to say this kind of thing to any journalist, however friendly-seeming. All in all, a really disappointing performance from Rubio.

UPDATE: “And a lot of them work on Capitol Hill.”

MORE: Prof. Stephen Clark writes:

Rubio’s staff, in instances like this, don’t reflect well upon his organization. He has since denounced the comments you quote. That said, I believe two things: First is that despite his Tea Party support, Rubio strikes me as instinctively a Bush-type moderate when it comes to the role of the federal government: compassionate conservatism take two. Second is that he is firmly convinced that he can carry moderates and a significant minority, if not the majority, of Hispanic voters in a general. He’s moving away from the base that elected him in hopes of enlarging his base for a national run. Unlike Paul or Cruz, he is explicitly courting the establishment of the Republican party. That tack has not hurt candidates running for the party’s presidential nomination. So his actions may alienate the base that first elected him, but he’s probably made the calculation that this base won’t get him the nomination in 2016.

P.S. He’s also courting the MSM constituency with his support of the current immigration bill: McCain is the model here.

And that worked out so well for McCain in the general election.