Primary Date: June 28
The Republican Primary: Republicans are choosing between one Trumpy extremist (state legislator Ron Hanks, who won the state party convention) and a businessman running as a get-things-done pragmatist (Joe O’Dea, who got on the ballot by collecting signatures).
The General Election: Colorado is a fairly solid blue state, but Senator Michael Bennet, a failed presidential candidate who has never topped 50 percent in two prior elections, could be vulnerable. Bennet remains the favorite, but if the GOP wave is large, look out.
Original source can be found here