S&P Global Ratings has assigned its 'AA' rating to the District of Columbia's (D.C.) series 2017D general obligation (GO) bonds. At the same time, S&P Global Ratings affirmed its 'AA' rating on D.C.'s previously issued GO bonds. The outlook is positive. The rating reflects our opinion of the District's considerably improved budgetary flexibility in recent fiscal years, resulting from strong general fund revenue growth and supported by very strong economic trends. In our view, this improved flexibility helps insulate D.C. from the effects of potential federal employment cuts or from a federal government shutdown. We base the GO rating on the District's full-faith-and-credit pledge. The rating reflects our assessment of the following factors for D.C.: Very strong economy, with access