George Santos, the former lawmaker who lied about his background, got expelled from Congress, and then became a convicted fraudster, is reportedly being investigated for insider trading.The probe, NPR reported on Tuesday, centers on Santos’ comments about February’s State of the Union address and his alleged bets on Kalshi, a prediction market website.On Feb. 23, a day before Donald Trump’s address to Congress, Santos posted a video on X in which he said he would attend. The odds on Kalshi that Santos would show up subsequently rose and remained relatively high. Its peak was 76 cents—meaning a wager of that...