1 9 7 2 , ▁the ▁year ▁he ▁became ▁D D CI , ▁estimated ▁a ▁pre ponder ance ▁of ▁Democr ats ▁over ▁Republic ans ▁at ▁C IA , ▁although ▁most ▁would ▁strongly ▁resist ▁any ▁part isan ▁use ▁of ▁the ▁Agency . ▁Wal ters , ▁Sil ent ▁Miss ions ▁( N Y : ▁Double day ▁ 1 9 7 8 ) ▁p . ▁ 5 9 2 , ▁c ited ▁by ▁R anel agh ▁( 1 9 8 6 ) ▁p . ▁ 5 3 5 . ▁When ▁retired , ▁Hel ms ▁continued ▁his ▁interest ▁in ▁the ▁dest iny ▁of ▁the ▁ag ency , ▁favor ing ▁William ▁Case y ▁as ▁D CI ▁during ▁the ▁Re agan ▁administration ▁when ▁the ▁ag ency ▁took ▁a ▁' con serv ative ' ▁direction . R anel agh ▁( 1 9 8 6 ) ▁pp . ▁ 6 5 7 , ▁ 6 5 9 ▁( Re agan ' s ▁plans ▁for ▁an ▁" ide ological ▁house clean ing " ▁at ▁C IA ), ▁at ▁ 5 5 9 – 6 7 1 ▁( Re agan ' s ▁Trans ition ▁Team ▁Report ▁re ▁C IA ), ▁pp . ▁ 6 7 2 – 6 7 5 ▁( Re agan ' s ▁campaign ▁manager ▁William ▁Case y ▁and ▁his ▁service ▁as ▁D CI ). ▁Yet ▁Hel ms ▁ste ered ▁an ▁informed ▁course ▁and ▁kept ▁his ▁own ▁coun sel ▁concerning ▁the ▁t ides ▁of ▁political ▁affairs , ▁according ▁to ▁journalist ▁Wood ward . ▁ ▁Hel ms ▁had ▁calculated ▁carefully . ▁The