Brazil is holding a run off presidential poll this weekend, and odds are it's going to elect Jair Bolsonaro.

He’s known for his far-right positions, having threatened to shoot up slums, and said it would be better for his son to be dead, rather than gay.

Bolsonaro emerged as the strong frontrunner after a sweeping corruption investigation more or less wiped out the political class, including the left wing leader Luiz Inácio Lula da Silva.

So how does a man like that win an election? And why is the financial world, including The Wall Street Journal, endorsing him?