Democrats hanging onto the Colorado House was an anomaly. The national Republican sweep was broad and deep.
Republicans added three governors (net) to a recent record high of 31. They extended their control of legislative chambers from 59 out of 98 to 68, another record (11 chambers flipped, including the Colorado State Senate). They now have the 4,100 legislative seats out of 7,363, a record high (since 1920).
Democrats controlled both houses of the legislature and the governorship in 15 states before the election, including Colorado. They now have just 7, compared to 23 Republican.
On November 4 Election Night Republicans were within striking distance of a three-seat pickup in Senate and five in the House. Ultimately, they gained one and control of the Senate and three, but not control, in the House. Between reappointment and Democratic resources, Republicans have a ways to go to take control.