 During Christie's governorship, New Jersey's credit rating was downgraded nine times (across Standard & Poor, Fitch Ratings, and Moody's Investors Service), leaving only Illinois with a lower rating among US states.As Governor of New Jersey, Christie received grades of B in 2012 and B in 2014 from the Cato Institute, a libertarian think tank, in their biennial Fiscal Policy Report Card on America's governors.On September 18, 2013, Christie signed legislation to overhaul the state's business tax incentive programs.