What kind of leader uses fear tactics to rally his "base?"

What kind of "base" is so easy to manipulate with fear?

- [i]The caravan is coming to get you.[/i]
- [i]The stock market will crash if I'm not reelected.[/i]
- [i]No one knows more than I do.[/i]
- [i]It's a national emergency.[/i]
- [i]If it wasn't for me, we would be in a war with North Korea by now.
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