At least CO is not a state where you may register and vote same day.
IMHO, the primary should be open to the party registered republicans when that state has delivered us a winner in the past.
If Iowa repeatedly puts forth losers, they need not be rewarded. Likewise, some states are weighted too heavily with delegates and others are under rewarded disproportionate to their support of republican winners.
Why keep rewarding losers that are also low EV states.
“IMHO, the primary should be open to the party registered republicans”
Absolutely. It seems stupid to reward people who register independent instead of forcing them to pick a party to vote in it’s primary.