Kammala jumla mai zuwa: Popescu ya yi aiki a matsayin Ministan Harkokin Cikin Gida a cikin majalisar Gigurtu daga 4 ga Yuli zuwa 4 ga Satumba, 1940, kuma a cikin majalisar farko ta Antonescu daga 4 ga Satumba zuwa 14 ga Satumba, 1940. A farkon watan Yuli ya taimaka wajen gudanar da kwararar 'yan gudun hijirar daga Bessarabia da Arewacin Bukovina a bayan yakin basasa.
Ƙungiyar Soviet ta haɗu da waɗannan yankunan Romaniya. A ranar 30 ga watan Agusta, Popescu ya halarci taron Majalisar Sarauta ta Sarki Carol II, inda ya kasance (tare da Gheorghe Mihail, Nicolae Păiș, da kuma) daya daga cikin wakilan sojoji hudu daga cikin biyar da suka ba da shawarar karɓar tanade-tanaden Kyautar Vienna ta Biyu, wanda Romania za ta ba da Arewacin Transylvania ga Hungary.