Portside

The American Federation of State, County and Municipal Employees Council 25 said Detroit, which last month filed for what would be the largest-ever U.S. municipal bankruptcy, has not proven it is insolvent and has not negotiated in good faith with its creditors. In a filing with the U.S. Bankruptcy Court in Detroit, the union said it was also challenging the constitutionality of Chapter 9 of the federal bankruptcy code, arguing that it encroaches on states' rights.