Rep. Jerry MoranGerald (Jerry) MoranIT modernization measure included in Senate-approved defense policy bill Campaign video touts apprenticeships making Trump commemorative coins Senate approves Trump's debt deal with Democrats MORE leads Rep. Todd Tiahrt in the Kansas GOP Senate primary within the margin of error, according to a new SurveyUSA poll.

The poll showed Moran leading Tiahrt 39-35, just inside the margin of error. It also showed the man vacating the Senate seat, Sen. Sam Brownback (R), dominating the GOP gubernatorial primary, 64-17 over Secretary of State Ron Thornburgh.

The Senate race is a de facto general election at this point, with the strong GOP lean of the state and the fact that Gov. Kathleen SebeliusKathleen SebeliusFormer health chiefs: Stabilizing ObamaCare markets benefits Republicans OPINION | 5 big ideas to halt America's opioid epidemic Aligning clinical and community resources improves health MORE (D) has been appointed to President Obama