Betting Markets on the Election, Once more

Maybe somebody can inform me why we get such totally different bets relying on platform (and why doesn’t RealClearPolitics embody PredictIt)?

First, one thing that popped into my mailbox this AM from the UK’s OddsChecker.

Evaluate in opposition to RCP:

All of those coated by RCP have a lot tighter odds.

Then there’s PredictIt, which is far nearer to OddsChecker.