A Libertarian candidate for the Colorado Senate is accused of making robocalls in the middle of the night.
Both of the candidates in Colorado’s Senate race support legislation that would allow the Obama administration to train and arm Syrian rebels to fight the Islamic State.
A political ad attacking Cory Gardner’s pro-life position has riled Colorado Republicans because it includes a young girl.
For the first time, President Barack Obama is inching into one of the highly competitive races that could determine whether Democrats maintain control of the Senate this fall.
An obscure, chicken-sized bird best known for its mating dance could help determine whether Democrats or Republicans control the U.S. Senate in November.
Republicans hoping to topple Democrats’ one-seat majority in the Colorado Senate will take a first step next Tuesday when they pick their candidates in two key legislative races in the Denver suburbs.
A bill to increase fines on the oil and gas industry is on its way to the Colorado Senate after the state House gave it final approval Monday.
The Colorado Senate passed a statewide ban on red-light and speeding cameras despite objections from some lawmakers that the bill would decrease traffic safety.
The Colorado Senate advanced a bill to expand the authority of mental health providers to report threats to places like movie theaters and schools.
The Colorado Senate has voted to expand the definition of tobacco products that are off-limits to minors.