para bellum
I'm a markets professional. I understand markets. I understand that thinly traded markets like election betting markets are easily manipulable. I've seen stocks with deeper liquidity being manipulated.
That doesn't mean that these markets are wrong. What it means is that you should have a deep skepticism of the information in these markets.
I look at election betting markets with mild interest as a gauge for general sentiment, but nothing else. They might be right, or they might not. Many things affect markets, not all of them rational.