Today in Washington ------------------------------------------------------------- This Diary is filed daily. ** Indicates new events ------------------------------------------------------------- THURSDAY, APRIL 18 ** WASHINGTON DC - Zimbabwe finance minister Mthuli Ncube will hold a press conference on the sidelines of the World Bank and International Monetary Fund (IMF) Spring Meetings in Washington DC. WASHINGTON DC - Federal Reserve Board Governor Michelle Bowman participates virtually in a fireside chat before the Securities Industry and Financial Markets Association (SIFMA) Webinar on Basel III Endgame - 1315 GMT.