Stores in Colorado Springs, Fort Collins, Greeley and Longmont will hold strike-authorization votes tonight and tomorrow morning.

Union members at Safeway stores in Pueblo, Fountain, and other areas of Colorado have voted to authorize a strike, according to the United Food and Commercial Workers International Union Local 7.

Unionized Safeway workers in Colorado, including those in the Boulder Valley, could soon go on strike, and labor leaders have hinted that King Soopers workers could also be heading back to the