 Released from Soviet prison following the creation of the communist-controlled Provisional Government of National Unity, he returned to the bar and active political career within the reactivated Polish People's Party, the most popular party in Poland at the time and the main opposition force to the Soviet-backed communist regime.30 of the 145 seats in the post-war government were offered to non-Soviet supported group and it was planned for Korboński to be part of the post-war government but his name was removed by Bierut.In the forged 1947 elections he was also elected a member of the Sejm.