Selina evaluates her past and present campaigns; Jonah's personal life sparks interest among the press; Amy makes an important decision.

At an Aspen retreat for rich donors, Selina deals with potential adversaries and allies; Amy's behavior raises Gary's suspicions.

In the run-up to the first debate, Selina makes a novel campaign proposal; Jonah's comments create blowback; Dan and Amy take a road trip.

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 tries to arrange a meeting via her Finnish contact, Minna; Gary helps Catherine plan a big event; Jonah and Amy push an anti-vaccination message in Pennsylvania; Mike finds a new home; Richard may have an enemy.

The nominating fight between Selina and her rivals reaches its climax, as their race comes to an historic finish.