We've heard stories about the push polls in Iowa, mostly against Obama and Edwards. This story in the QC Times adds to it with a new form of push polling. Sounds like Repug dirty tricks to me:
http://www.qctimes.com/articles/2007/12/31/ap-state-ia/d8tslkl03.txt
Michael Hancock of Coralville said he had received an automated call in the last 24 hours asking him whether he planned to attend a caucus. When he indicated he was, "The next question was whether I planned to watch the BCS-Orange Bowl," a college football game scheduled to be played in Florida on caucus night.
Hancock said he hung up his phone, then said he concluded it was a "transparent attempt to depress turnout from some people."
Josh Earnest, a spokesman for Obama, criticized the calls.
"Negative campaign tactics like push polls don't reflect the values that are at the core of the Democratic Party and the Iowa caucuses," he said.
Aides to Edwards and Clinton had no immediate reaction.