An interesting factoid from David Denholm, of the Public Service Research Foundation:
In reviewing the September 2007 report of NLRB elections, I came across a decertification vote that is just too priceless to pass up.
The Office and Professional Employees International Union (OPEIU) was decertified by a vote of 4 to 0 in a small office in Denver, Colorado. The office was Teamsters Union Local 961. You can find this on page 29 of the report.
It might be worth noting that OPEIU is an AFL-CIO affiliate while the Teamsters are affiliated with Change to Win.
Apparently you get to vote your conscience in private when you work for the union, but not at no other time. Ahhh, principles …