ROLAND S. MARTIN: No Shock In Santorum Rise, Bachmann Defection (VIDEO) | Roland Martin Reports

ROLAND S. MARTIN: No Shock In Santorum Rise, Bachmann Defection (VIDEO)

Roland Martin and Ron Bonjean join Natalie Allen in the CNN Newsroom to discuss the GOP presidential field shake up.

SOUND OFF: Are you shocked by the sudden shake up in the Iowa polls?