Looking for examples of unions conducting political activities during work time

Greetings, smagar here.

In Tucson, we’re up to our elbows in last-minute politicking.  I’m in a situation where I need to show the local leftys examples of union members and other liberals conducting political activities at the work place or during work hours.  (I.e., politicking while you and I are paying them!) So far, I’m not having too much success on finding good examples in Google searches.

If you have any good examples, please post them here.

Thanks, smagar