Giggling like a schoolgirl because she thinks she's talking to Pres. Sarkozy of France, even when her interlocutor says, "Oh, yesss, I love zat aerial 'unting, killing aneemals from ze 'elicopter, jus' keeling theengs."
She's not a maverick. She's even going "rogue." She just thinks running for the Vice Presidency of the United States is like running for class president.
In short, she's stupid.