Why did you read her book? She also showed emotion in the interview just by saying ' Even Trump' as this comment exposes her mental bias. And fancy thinking it's ok or productive or constructive to have your phone in your pocket when your at work and even worse if working for secret service, being paid for every second of your time unless it's turned off, the boss shouldn't be paying you to monitor your private phone or take personal calls, texts and emails Lol, lol, lol.
Many are irrational when it comes to politics but it's a desired outcome the politicians want when it comes to the public, part of the political science if you will as it enables them to pull on heart strings, install fear in minds to help them achieve their objectives.
Can't have too much emotion in markets either or biases when invested and one also has to understand the psycology of the market your researching or invested in as well for maximisation, one has to be rational and have structured thought based on facts and be able to identify the points that matter that may influence direction of SP's, it's why shorters are often good at what they do but hated by the emotional masses.
Anyway for interest, my ex-wife use to think i am as emotional as a rock and probably still does Lol Shes irrational though.