To mark Labor Day 2010, President Obama will join hands with AFL-CIO President Richard Trumka in Milwaukee and pose as champions of the working class. Bad move. Trumka’s organizing record is a shameful reminder of the union movement’s violent and corrupt foundations.

The new Obama/AFL-CIO power alliance — underwritten with $40 million in hard-earned worker dues — is a midterm shotgun marriage of Beltway brass knuckles and Big Labor brawn. Trumka warmed up his rhetorical muscles this past week with full-frontal attacks on former GOP vice presidential candidate Sarah Palin. He indignantly accused her of “getting close to calling for violence” and suggested that her criticism of Tea Party-bashing labor bosses amounted to “terrorizing” workers.