Democrat Mazie Hirono leads Republican Linda Lingle in a new survey released this week by Public Policy Polling previewing a potential general election matchup for the U.S. Senate seat being vacated by Daniel Akaka.

Hirono faces Ed Case in the Aug. 11 primary.

Hirono leads the hypothetical matchup with Lingle 50 percent to 41 percent with 9 percent undecided. The survey of 600 Hawaii voters was conducted May 16 and 17 and has a margin of error of +/- 4 percent. PPP is based in North Carolina and is sometimes referred to as Democrat-leaning but has been accurate in recent years.

The race was split 46-46 among men, and Hirono had a 53 percent to 37 percent edge among women. Hirono had 46 percent favorable rating versus 37 percent unfavorable, marginally stronger than Lingle’s 44-46 favorable-unfavorable split.

Read the full survey questionnaire and crosstab results here.