The results show that 51% of likely voters favored Thompson and 39% favored Feingold. Nine percent of the likely voters were undecided.
In a matchup between Feingold and Republican Madison developer Terrence Wall, Feingold leads 47% to 32%.
The poll was directed by political scientist Ken Goldstein of the University of Wisconsin-Madison. The survey of 600 randomly selected likely voters in Wisconsin was conducted from March 7-9 and has a margin of error of plus or minus 4 percentage points.
In the governor’s race, Milwaukee County Executive Scott Walker leads Milwaukee Mayor Tom Barrett 36% to 32%.The margin of error of the poll makes a Barrett-Walker race virtually even.
The gap between Walker and Republican home builder and former U.S. Rep. Mark Neumann is wider, with Walker leading Neumann by 19 percentage points (46% to 27%.)
Walker’s lead is aided by his large advantage in the Milwaukee media market, where nearly 7 in 10 likely voters said they support Walker over Neumann. In the rest of the state, Neumann held a slight edge over Walker.
In a head-to-head race between Barrett and Neumann, the results show that it’s a dead heat. Barrett and Neumann are tied at 34%.