Craig Robinson of the Iowa Republican releases new poll results, which include Chris Christie in the Iowa field. Romney leads with 18 percent, Bachmann places second with 15 percent, and Christie finishes third with 13 percent. Robinson writes:

The person who could flip the race on its head is New Jersey Governor Chris Christie. If Christie enters the race, Romney would lose almost nine percent of his support to Christie, but the biggest loser would be Bachmann who sees 22 percent of her support go to the New Jersey Governor. Christie also takes a chunk, 20 percent, from Pawlenty.
Christie performs very well among people who mention spending as their top concern. Christie garners a 19 percent vote share in this group versus 13 percent in the sample as a whole. After the economy, cutting spending was the concern mentioned by most caucus participants.