03/18/2010 05:12 am ET Updated May 25, 2011

United Food And Commercial Workers, Local 7, Can't Get Approval For Strike From National Leadership

Friction between Colorado grocery-worker union officials and their national leadership could once again derail or delay a strike during the crucial holiday shopping period.

Washington, D.C.-based United Food and Commercial Workers International continued Monday to withhold its authorization for members of UFCW Local 7 in Colorado to go on strike.

The union's tiff mirrors the previous round of contract negotiations in 2004, when UFCW's national leadership intervened to interrupt a local strike vote in November.