If you would like to see who is running, you can use the following links:
Federal Races are searched through the FEC: President, US Senate, Congress. Here is a link to Colorado:
State, Legislative, County, School Board and District Attorney Races are searched through TRACER at the CO Sec of State.
Municipal Races are not centrally reported. The official filing record will be kept by a city or town clerk.
The General Assembly changed voting laws this session:
1) Automatic Voter Registration (through Medicaid in addition to DMV)
2) 17 Years (who will be 18 by General Election) can vote in the March 3, 2020 Presidential Primary, in our March 7, 2020 Democratic Caucuses and in the June 30, 2020 Everybody-Else Primary.
3) People on Parole can now vote.