They would never vote for Republicans.
Tomorrow is the 100th anniversary of the Triangle Shirtwaist Factory Fire. If you've never heard of it, you should read this story. There is nothing like the history of unions in America to convince people that Republicans want to take us back to the days before unions won victories for the working people of this country.
Any union member who votes Republican should be ashamed of themselves. They are traitors to their fellow workers.
"It was unions -- led by the International Ladies' Garment Workers (now Workers United) in league with the Women's Trade Union League -- that began harnessing public outrage in the wake of the fire to demand the regulations regarding worker health, well-being, and safety that protect many workers to this day, whether or not they belong to a union. Think workers' compensation, unemployment insurance, the 40-hour workweek, weekends, holidays, sick pay, employee benefits, and safety standards."
- Preserving the Triangle Factory Fire's Lessons, 100 Years Later (view on Google Sidewiki)