He's young and he's taking a great liberal stand. The Democratic Party's leadership is older than the dinosaur exhibit at the natural history museum.
Also, Margaret Thatcher's early oratory was very different from the kind she became famous for. She was trained well to speak forcefully and with anger and righteousness. It didn't come naturally.
Kids are not taught oratory in high school which perhaps they should have a whole class on.
My high school had "Interpersonal Communications" as an elective... but that was it.