By all accounts, the Democrats' five-seat majority in the Colorado State Senate is safe, but either party could gain a couple seats during this year's election.
The key Senate districts to watch are the 8th state Senate District, the 16th District, the 19th District, the 23rd District and the 26th District. Of those, two are open seats being relinquished by Republicans, one has a Republican incumbent, one has a Democratic incumbent, and one is being vacated by a Democrat.