New York City Mayor, Michael Bloomberg is opposing two union-backed bills on New York state's Capitol Hill. The mayor wrote in a letter that the bills could cost the city $300 million per year, but AFSCME District Council 37, the organization representing the majority of New York City s municipal workers, isn't buying that figure. One bill allows nurses to retire at the age of 50, while the other lays out a plan for members of Council 37 to buy into an early retirement plan originally offered in 1995.