Kalshi is engaged in a legal battle that may reach the U.S. Supreme Court to legalize prediction markets related to elections and sports. Meanwhile, Wisconsin has sued Kalshi and other companies, claiming their prediction market platforms operate illegally. Brazil has shut down 27 prediction market platforms, including Kalshi, due to concerns over their negative impact on households. In the U.S., a rule has been passed barring senators from trading on prediction markets amid rising concerns about insider trading.
