From NRO's Katrina Trinko:

Results from CNN/Time ORC poll of likely GOP Iowa caucus goers: Mitt Romney (25 percent), Ron Paul (22 percent), Rick Santorum (16 percent), Newt Gingrich (14 percent), Rick Perry (11 percent), Michele Bachmann (9 percent), and Jon Huntsman (1 percent). Forty-three percent of voters still anticipate that they might change their mind before caucus night.

Public Policy Polling adds, reflecting on its own poll (PDF) findings:

"And given all the strange twists and turns to this point don’t be surprised to see yet another surprise in the final week…and based on the innards of this poll the person best positioned to provide that surprise in the closing stretch is Santorum."