Monica Wehby, a Republican candidate for Senate in Oregon, leads her primary opponent Jason Conger by 17 points in a new poll by a GOP polling group supporting Wehby. New Republican, which has been running TV ads on Wehby’s behalf, polled 500 likely primary voters in Oregon and found 41 percent support Wehby, a pediatric neurosurgeon and first-time candidate, while 24 percent support state senator Jason Conger.

Oregon’s primary is next Tuesday, May 20. Polling on the primary has been scant, though a poll from earlier this month showed a similar, 21-point advantage for Wehby.