Sarah Palin on Monday came out against the Senate immigration bill, criticizing its border security provisions and labeling Sen. Marco Rubio (R-Fla.) an "amnesty supporter."

"It’s beyond disingenuous for anyone to claim that a vote for this bill is a vote for security," Palin wrote on her Facebook page. "Look no further than the fact that Senator Rubio and amnesty supporters nixed Senator [John] Thune’s amendment that required the feds to finally build part of a needed security fence before moving forward on the status of illegal immigrants who’ve already broken the law to be here."