A law that requires state employees with defined benefit retirement plans to put 4 percent of their salaries toward their pensions is constitutional, the Michigan Supreme Court ruled Wednesday. The change was made by a 2011 law that state employee unions heavily opposed. Under the law, employees could choose to remain in the defined benefit plan but contribute 4 percent or switch to a defined contribution 401(k) plan. The Michigan Coalition of State Employee Unions sued the state, arguing [...]