Claire McCaskill Accuses Marco Rubio Of Shirking Principles On Immigration

Sen. Claire McCaskill (D-Mo.) knocked Sen. Marco Rubio (R-Fla.) on Sunday for backing away from his push for comprehensive immigration reform, saying on ABC's "This Week" that he had "folded like a cheap shotgun."

Rubio, who announced his bid for president last week, has gotten heat from some conservatives for co-authoring an immigration reform bill that would allow some undocumented immigrants to eventually become citizens, along with ramping up border security and enforcement measures.

He then said in February that he'd since learned a comprehensive approach was the wrong one,...