When the tide began to turn against Hitler, Kubizek, who had avoided politics all his life, became a member of the Nazi Party in 1942 as a gesture of loyalty to his friend.
Da Hitlers krigslykke begyndte at vende, meldte Kubizek, der havde undgået politik hele sit liv, sig ind i NSDAP i 1942 som en gestus af loyalitet mod sin ven.