(21 Jun 1968) STORYLINE: Washington --- Rep John Conyers, d - mich announces creation of national committee of inquiry by negroes to screen all presidential candidates wa15044 "negroes" shows: (1) several scenes, conyers at mikes with mrs martin luther king, newsmen, 17 secs; (2) soundup, cu conyers, sof, 1:25. (61ft - 1:42, shot 6/21/68) je253ped. conyers, john - sof cr in politics politics - us king, coretta xx / 61 ft / 16 neg / 250 ft / 16 neg / cuts / Find out more about AP Archive: http://