- Marco Rubio finished in third place for the Iowa caucuses a stronger than expected finish going into New Hampshire
- Rubio's closest opponents are sharpening their attacks on the Florida senator
- New Jersey Gov. Chris Christie told Rubio to "man up" and said he was a "boy in the bubble"
Bedford, New Hampshire (CNN)Chris Christie attacked Florida Sen. Marco Rubio on Tuesday as an unprepared candidate with few skills outside of listening to his advisers, repeatedly calling him "the boy in the bubble" today in New Hampshire.