 Nyorai kuenderera mberi kweiyi ndima - Akamirira Liberal Party musarudzo dzakawanda dzeParamende: muMerton neMorden muna 1950, Bethnal Green muna 1951 na1955, uye Gainsborough muna 1959 na1964. Panguva ino, akanga ava kushanda mudare reLiberal Party. Mukutarisana ne1975 United Kingdom European Communities membership referendum, Douglas akatungamirira Liberal Kwete kuCommon Market Campaign. 