A panel of Colorado Republicans selected former Mayor Greg Lopez to be their candidate and likely replacement for the remainder of former Rep. Ken Buck‘s term, a decision that could buoy Rep. Lauren Boebert (R-CO) as she eyes his House seat.

On Thursday night, the Republican panel in Colorado‘s 4th Congressional District selected Lopez, former mayor of Parker, Colorado, to run in the June 25 special election after Buck departed from Congress early on March 22. His resignation narrowed the GOP majority in the House even further to 218-213.