DENVER (AP) – An effort to recall two state senators has ended after backers informed the Colorado Secretary of State’s office that they will not be turning in the signatures they collected to force special elections to remove the pair. The recall effort involved Democrat Sens. Pete Lee, of Colorado Springs, and Brittany Pettersen, of Lakewood. The failed effort comes after the backers of a campaign to recall Gov. Jared Polis last week didn’t collect enough signatures to seek removing him from office. An effort to remove Democrat Rep. Tom Sullivan, of Centennial, from office also was abandoned this summer. There is still one active legislative recall campaign in the works. An effort to oust Senate President Leroy Garcia, a Democrat from Pueblo, has until Oct. 18 to collect 13,506 signatures.