Rep. Jerry Moran (left), R-Hays, has opened up a significant lead over Rep. Todd Tiahrt, R-Goddard, in next year's U.S. Senate race, according to the latest SurveyUSA poll, co-sponsored by KWCH, Channel 12. The survey has Moran leading Tiahrt 43 to 27 percent. Two caveats: The GOP primary is still 10 months away, so a lot can change. And the survey includes some unaffiliated voters, who would have to register as Republicans in order to vote in the GOP primary (though Moran still leads Tiahrt by 14 points among Republicans surveyed).Of note in the survey, Moran leads Tiahrt among self-described pro-life voters by 10 points and among gun-owning voters by 16 points — two significant bases of support for Tiahrt. Moran also leads by 29 points among voters under age 50.