The Des Moines Register poll asked:
"Which of the candidates have you seen in person before the caucuses?"
Mitt Romney and Rick Santorum got 12%. Santorum has run a traditional, all-in Iowa campaign, practically moving to the state and visiting each of its counties.
Romney has been there four times this year.
This may be `08 hangover, or it may be the extent to which the national media primary has confused voters about even their own experience.