DENVER -- Colorado's lieutenant governor has opted out of running for the U.S. Senate, just as a former representative officially entered the race. Jane Norton said Monday in a statement that she and her family believe she can best serve the state by continuing as lieutenant governor for the next three years. "We have important work to do by continuing our progress in education and healthcare reform, transportation improvements and protecting and preserving the environment. I will continue to fully support Gov. Owens as he leads the state forward in these efforts," Norton said. Her decision comes as Bob Schaffer...