Sen. Marco Rubio, R-Fla., knows that the biggest challenge in selling citizenship for illegal immigrants to conservatives is convincing them that this will be the last batch of immigrants that will ever be granted citizenship after entering the United States illegally. To that end, Rubio has made the border security aspects of his bill the centerpiece of his sales pitch. Problem is, his bill has no real border security guarantees in it, so Rubio has been forced to keep changing his story.

Border commission bust

When the bill first came out, Rubio did a comprehensive tour of conservative radio shows selling a border commission made up of federal and state officials as the linchpin security measure of his plan. For example, here is what he told Mark Levin: