SPRINGFIELD — A pen, a flimsy majority and a 63-year-old court ruling this week combined to deprive Democrats of a victory on worker wage laws.The Illinois House on Tuesday failed to override GOP Gov. Bruce Rauner’s veto of a bill aimed at increasing pay and power for unions and their workers, as Republican opponents cited a 1953 Illinois Supreme Court decision to argue the arrangement would be unconstitutional.Despite approval from the Senate and a veto-proof majority in the House, Democrats fell one vote …