Upstart broker Robinhood is jumping into the prediction betting game, announcing Monday users can begin trading the 2024 presidential election that is eight days away.Users can trade a Kamala Harris or Donald Trump contract starting Monday, said the company, as long as they meet certain criteria that include being a U.S. citizen. The trading is being offered through its Robinhood Derivatives unit and ForecastEx, which is operated by Interactive Brokers.Robinhood jumps into a suddenly crowded pol...