 In 1978 Griscom joined the staff of Senator Baker and served as press secretary.In 1985-86, after Baker's retirement from the Senate, Griscom served as the executive director of the National Republican Senatorial Committee (NRSC), and was charged with the task of overseeing the re-election efforts of the Republican majority in the Senate.He later became part of the Reagan administration in 1987, while Baker was chief of staff.