Wait!
I thought the whole reason Puerto Rico never wanted to join the Union was because of the special status granted to businesses on that island; that unions there aren’t a power with which to be reckoned.
Is PR heavily unionized? If so, I didn’t know that.
Oh there are plenty of unionistas in PR.
http://www.seiu521.org/SEIU_Convention_in_Puerto_Rico_a_Success.aspx