Colorado voter registration is racing toward four million (3.9 million active and inactive today) and turnout is exceeding 75 percent. In the 2004 presidential election, registration was 3.1 million, with Republican registrants ahead of unaffiliated voters and 178,000 in front of Democrats. Republican officeholders had dominated the state with President Bush winning the electoral vote, and Republicans having the governorship, both senators and four of the congressional seats.
After a decade of rapid population growth, starting after the Great Recession (2008), Democrats went ahead of Republicans, but unaffiliated voters exceeded them both. They are now at 39 percent of the active electorate, and exceeding second-place Democrats by more than 300,000 voters. Republicans have dropped into third-place.