Aaron Gutierrez is running against Charles Perko (D, union leader), Taylor Voss (D, former Pueblo School District 60 at-large board member) in Democratic primary; Dana Charles (R, healthcare manager) in general.
SD-3 is a key swing district that could determine whether Democrats reach a two-thirds supermajority in the Colorado Senate, which would allow them to override gubernatorial vetoes and refer constitutional amendments to voters. Incumbent Nick Hinrichsen is not seeking re-election, leaving an open seat in Pueblo County that has been trending right. Democrats have held this seat since 2014.
Three-way Democratic primary pits attorney/White House alum Gutierrez against union leader Charles Perko and former school board member Taylor Voss. Republican Dana Charles (healthcare manager) is the sole GOP candidate. Gutierrez emphasizes his experience as a public defender handling 250+ cases and his Obama White House background, positioning as someone who can work across party lines. The Colorado Democratic Party chose Pueblo to host its 2026 state assembly, signaling the region's importance.
Key dates to watch: Primary on June 30, 2026 and General Election on November 3, 2026.