Michigan became the nation's 24th right-to-work state - Mar 28th, 2013 - State
— Michigan workers can choose not to financially support unions that bargain on their behalf under a right-to-work law now in effect.
The measure that took effect at midnight will apply to labor contracts that are extended or renewed after Wednesday. Many unionized employees won't be affected for months or years.
Union organizers are asking people to wear red Thursday to protest.
Supporters plan to celebrate the law's passage.
Republican Gov. Rick Snyder is expected to see protesters at unrelated events in Detroit.