Three Colorado Republican candidates–Ryan Frazier (CO-7), Cory Gardner (CO-4), and Scott Tipton (CO-3)–have united in their challenges against three incumbent Democrats, and will host a joint fundraiser in Aspen this Friday featuring Karl Rove:

Former George W. Bush political adviser Karl Rove will appear Friday at an Aspen fundraiser for Cory Gardner, Ryan Frazier and Scott Tipton. The three Republican challengers are taking on Democratic House incumbents Betsy Markey, Ed Perlmutter and John Salazar.
Those three candidates and the National Republican Congressional Committee formed a joint fundraising committee earlier this month, called the Colorado Majority Fund.

Both Frazier and Tipton were promoted to the NRCC’s “Young Guns” status this month, joining Gardner, who attained the NRCC’s highest ranking over the summer.