Traders on prediction platforms Kalshi and Polymarket are wagering that the federal government shutdown will extend well into next month, as partisan gridlock shows little sign of easing. As the standoff enters a third week, hundreds of thousands of federal workers remain furloughed ahead of a Senate vote Tuesday.Traders on Kalshi give a 65% chance that the government shutdown will last until Oct. 31, with about 52% betting it will stretch just over 36 days.  PREDICTION MARKET TRADERS BET SHUTDOWN WILL LAST ...