Rasmussen Reports and Pulse Opinion Research conducted a survey of 500 Washington likely voters which ended on Sep 26, 2012. Respondents were contacted by Landline and the interaction was automated. The results of this poll were released on Oct 4, 2012.
Results were provided for the only publicly acknowledged question.
Question 1 | PreferenceView Matchup
If the 2012 election for U.S. Senate were held today would you vote for Republican Michael Baumgartner or Democrat Maria Cantwell?
This question was presented to 500 likely voters from Washington who were contacted in some undisclosed fashion. The margin of sampling error is ± 4.5% at the 95% confidence level.
The question wording was provided by Rasmussen Reports and Pulse Opinion Research.