MADISON, Wis. — Labor Day is traditionally considered the unofficial end of summer, a last chance for barbecues and trips to the pool. It’s also a three day weekend for many workers, one of many benefits that unions have secured for American workers. Across our history, that list also includes the 40 hour work week, paid time off, retirement benefits, and so much more. Public and private sector unions remain critical in the fight to ensure that all Wisconsinites make a family-supporting wage, have access to quality healthcare, and experience safe working conditions.  That’s also why it’s time for public sector