June 2, 1966 memo from White House senior policy adviser Joseph Califano, Jr. to President Johnson that forwards a May 31, 1966 letter to the President from his adviser on District of Columbia affairs, Charles Horsky. Both letters recommended that the President sign a letter to Congress transmitting requested legislation ratifying, on behalf of the District, of Columbia, the DC-Maryland-Virginia interstate compact creating the Washington Metropolitan Area Transit Authority (WMATA). The Califano memo gives an overview, and the Horsky memo lists individual Members of Congress who were supportive of the legislation.