This scripted speech delivered by a career politician surrounded by teleprompter screens will no doubt be the silver bullet that kills Trump's campaign!
That's not the point. The point is that she unleashed the "fear" card, which is the most powerful card in politics, with brutal effectiveness. There aren't many election cycles in which contenders can use it, but when they can, landslides are born. Massive ones.
Interesting, can you give an example?
Goldwater vs Johnson is the canonical answer with Barry Goldwater being portrayed as a deranged maniac who would literally destroy the world for no reason other than ideological mania. Some of Reagan's victories also exploited such a narrative.