Shutdown may cost U.S. economy $15B weekly, Treasury warns

The ongoing U.S. federal government shutdown is expected to cost the economy up to $15 billion per week in lost output, Treasury officials now say. Earlier estimates had overstated the damage at $15B per day. The shutdown is already “cutting into the muscle” of growth, adding pressure to Washington to resolve the standoff. Officials continue to emphasize that the broader investment boom—especially in AI and tech—is sustainable, but political gridlock is testing that thesis. Markets remain cautious about fiscal spillovers.