Democrats:Clinton: 35%
Obama: 21%
Edwards: 15%
Richardson: 5%
Biden: 2%
Kucinich: <1%
Dodd: <1%
Gravel: <1%
Undecided: 19%
Republicans:Giuliani: 37%
Romney: 15%
McCain: 15%
Fred Thompson: 7%
Brownback: 1%
Huckabee: 1%
Hunter: 1%
Paul: 1%
Tancredo: 1%
Hagel: <1%
Tommy Thompson: <1%
Undecided: 15%
The telephone survey of 505 likely Nevada Republican caucus–goers and 500 likely Nevada Democratic caucus–goers was conducted April 11-12, 2007, and carries a margin of error of +/- 4.5 percentage points.
http://www.zogby.com/news/ReadNews.dbm?ID=1285