Colorado is now dead for the GOP..."
The bolded is wrong.
The STATE is dead; that hardly means every congressional district is too. This is an R+9 district and should be easily held and CD-4 will be VERY easily held by the GOP. CD-3 is only "leaning" towards the GOP because the Democrat candidate has billions of dollars (slight exaggeration) to spend.
In the end, the GOP should keep the same 3 districts they have now and also have a decent chance at picking up CD-8 which is held by an ultra-liberal freshman Rat.
I lived there. My next door just moved from there. He said it is done, it has now been infiltrated.