Political congressman gets another woman pregnant. Then makes his gay son marry a woman. Then makes his gay son adopt the child his father had from another woman. The gay son’s wife did not know he was gay. So the child is really the congressman 's son and the gay son’s half brother.
1 Answer
1The Birdcage (1996)?
Googled: movie|film+congressman|senator+gay+son+marry|marrying+woman
This is also my best guess.
– casspir