The Best Man (1964)

In The Best Man, a dark horse candidate for the US presidency faces challenges and scandals including libel charges, sexual blackmail, and a terminal illness. As the election campaign unfolds, the candidate must navigate ruthless politics and play various sides against each other. With the help of an estranged wife, a US senator, and a secretary of state, the candidate tries to secure the presidential nomination through political intrigue and self-sacrifice.