After realizing that Vice President Grace Penn orchestrated the terror attack against the British ship to both stop Scottish independence and keep a submarine base, Hal and Kate decide to inform the Secretary of State. Grace also tells Kate she intends to keep her job as Vice President, and that Kate needs to stop chasing it. Because yes, in The Diplomat season two finale, Hal inadvertently killed the president by revealing to him that Grace masterminded the HMS Courageous attack.