The nominating fight between Selina and her rivals reaches its climax, as their race comes to a historic finish. Series finale.
Facing increased scrutiny heading into Super Tuesday, Selina visits Mike to deflect attention from Andrew's legal troubles. Jonah and Amy ramp up their anti-Selina campaign rhetoric. Dan attempts to exploit Richard.
Selina and team head to South Carolina, where she seeks an endorsement from a key leader. Gary gets a long-awaited promotion, while Marjorie excels in her new role.
In the run-up to the first debate, Selina makes a novel campaign proposal. Comments by Jonah create blowback. Dan and Amy take a road trip.
At an Aspen retreat for rich donors, Selina deals with potential adversaries and allies. Amy's behavior raises Gary's suspicions.