Wisconsin public sector unions still losing members

The Washington Examiner reports:

Thousands of Wisconsin public sector workers have dropped their union membership since Gov. Scott Walker's reforms have taken effect.

Recent Labor Department filings show just how drastic this decline has been for organized labor.

American Federation of State, County and Municipal Employees Leadership Council 40, based in Madison, reported it had just under 32,000 members as recently as 2011, when Walker introduced his reforms. In a May filing, membership had dwindled to a little more than 13,000, a loss of about 18,000 members in four years.

Where would unions be without coercion?