Sullivan lost his son, Alex, in the Aurora theater shooting in 2012. This November, Sullivan was elected to the state House.
Sullivan's election to the state House was part of a blue wave in Colorado. Now he's leading a renewed effort for "gun restraining order" legislation.
As memories of important events and people fade, the risks of a gun-related accident increase.
Democrats hold full control of the statehouse and the governor's office after the midterm election.
All told, Democrats gained seats in 62 of the 99 state legislative chambers, according to data provided by the National Conference of State Legislatures. Democrats also added seven new governorships.
The outgoing Colorado governor celebrated Tuesday night's Democratic dominance, but emphasized compromise and bipartisanship will still be vital.
A federal judge in Seattle is scheduled to hear arguments Tuesday on whether to block a settlement that would allow a company to post blueprints for printing 3D weapons on the internet.
Attorneys general from 19 states, plus the District of Columbia, filed an amended complaint Friday asking a judge make it illegal to share plans on creating printable plastic weapons.
There are available 3D printers in the Denver-metro, but they are not without their own rules or supervision.
Both Republican George Brauchler and Democrat Phil Weiser said they wouldn’t do anything to thwart recreational marijuana legalization.