With the wearisome repetitiveness of a tacky Christmas song, a US government shutdown is again threatened. A budget deal backed by president-elect adviser Musk and President-elect Trump failed to pass Congress. Absent a deal, the US government starts to shut down tonight. A short-lived shutdown affects government workers, but has limited economic impact. The longer a shutdown lasts, the more disruptive it is to the US economy. Economic data may not get published in a shutdown (a problem for Federal Reserve Chair Powell with their addiction to data dependency).