The Seduction of Joe Tynan

The Seduction of Joe Tynan is a 1979 American political film drama directed by Jerry Schatzberg and produced by Martin Bregman. The screenplay was written by Alan Alda, who also played the title role.

Respected liberal Senator Joe Tynan is asked to lead the opposition to a Supreme Court appointment and he finds himself struggling with his own morality and the corruption surrounding him. He falls for a lovely lady attorney and has an affair that jeopardizes his marriage, and possibly, his career.

Source: Wikipedia