Former U.S. Rep. Greg Lopez, right, speaks with delegates Colorado's state Republican Party assembly in Pueblo on April 5, 2024, prior to his election to Congress in this file photo. (Ernest ...

In this Tuesday, June 19, 2018, file photograph, 2018 Republican candidate for Colorado governor Greg Lopez speaks during a televised debate in Denver. Lopez is running for the office again in 2022.

The number of Republicans running for governor in Colorado has shrunk by two. State Sen. Mark Baisley is leaving the race to run for U.S. Senate against incumbent John Hickenlooper. And former ...