Even though it’s astonishing that any union member would vote for Scott Walker, union voters not voting for a Democrat is not news, as Kevin Drum points out:
Take a look at past elections. In 2004, 38% of union members and 40% of voters in union households voted for George Bush. In 2008, 39% of union members and 38% of voters in union households voted for John McCain. In 2010, 37% of voters in union households nationwide voted for Republicans, and that’s also the share of the union vote that Walker got in Wisconsin that year.
An AFL-CIO rep at the NRN Wisconsin post-mortem thought part of this was blindness of union members to a divide-and-conquer strategy, with private union members thinking that they’d be safe from Walker, since he was only going after public union members. But there’s got to be more to it than that. Maybe 37% of union members don’t want to be in a union, because they won’t be if the Republicans they vote for keep winning elections.