Article Photos: Unions vow political payback for right-to-work law 6/6

Dozens of union backers protest against the right-to-work bills outside Sen. Tonya Schuitmaker's Kalamazoo, Mich., office Sunday, Dec. 9, 2012. People sang Christmas-themed protest songs and carried picket signs outside the office of the Republican state senator, who received a bag of coal from union-rights demonstrators protesting her vote to make Michigan a right-to-work state. (AP Photo/The Kalamazoo Gazette, Aaron Mueller) ALL LOCAL TV OUT; LOCAL TV INTERNET OUT