The Republican-led Michigan House has approved a contentious right-to-work bill limiting unions' strength. The measure approved Tuesday morning deals with public-sector workers. Another bill focusing on the private sector was approved last week, when the Senate OK'd both bills. When final versions have cleared the House, they'll go to GOP Gov. Rick Snyder for his expected signature as early as Wednesday. Passage followed numerous challenges and changes sought by Democrats as well as raucous protests inside and outside the Capitol from pro-union demonstrators. Thousands descended upon downtown Lansing to rally against the legislation that prohibits requiring nonunion employees to financially support unions at their workplace. Backers say a right-to-work law would bring more jobs to Michigan and give workers freedom. Critics say it would drive down wages and benefits.