SurveyUSA takes its second look at the open seat race in WA-03 to replace retiring Dem Brian Baird, and they find that Denny Heck has narrowed the gap slightly, though Herrera's already over 50%. This could be via better name rec for Heck via continued presence on the airwaves, or just float within the narrow band established by their last poll (and the cumulative Dem/GOP results (54 GOP-42 Dem) of the Top 2 primary).
This being SurveyUSA (and this being Washington, where their age skew always seems especially pronounced), you're probably wondering how those young people feel about this race. Well, it seems like they're really eager to take Herrera out for a malted and then to the sock hop, because she leads Heck 56-38 among the 18-34 crowd. Oldsters want Herrera to turn down that racket, though: Heck actually leads 48-46 among the 65+ crowd.