COLORADO SPRINGS, Colo. (AP) Relatives of some of those killed in the Aurora theater shooting and Newtown are campaigning for one of two Colorado senators facing a recall election for passing stricter gun control laws.

Tom Sullivan and Lonnie and Sandy Phillips, whose children were killed in Aurora, and Jane Dougherty, whose sister was killed at Sandy Hook Elementary School, spoke with volunteers for Sen. John Morse in Colorado Springs Wednesday. Sandy and Lonnie Phillips of San Antonio, Texas also joined the volunteers in going door-to-door, something they plan to continue until the election ends Tuesday.

Meanwhile, six of the Colorado sheriffs who oppose the new guns laws held a rally in Colorado Springs.

Colorado was the only state outside the East Coast to tighten its gun laws after last year's mass shootings.