The Republicans have a heavy registration edge in the district.
Wyoming is one of the nation's most Republican states, with a 2-to-1 registration edge over the Democrats.
Republicans are a growing presence in Colorado and have a registration edge of 5 percent, or 120,000 votes, over the Democrats.
Despite the Democrats' 2-to-1 registration edge, Republicans appeared likely to win the governorship.
Even at just under 50 percent, Republicans still hold a reasonably comfortable registration edge over Orange Democrats.
Democrats hold a slight registration edge, but political analysts said voters not registered with any party would decide the outcome.
Republicans have a registration edge, but nearly one-third of its voters call themselves independent.
Waterbury has a Democratic registration edge, but usually favors conservative candidates in both parties.
Democrats have a registration edge of 10,000 voters in the district.
Republicans hold a heavy registration edge in the district.