“If the partial government shutdown continues for two more weeks, our estimate of the total impact will be $6.0 billion, which would exceed the $5.7 billion in funding being requested to build a border wall,” wrote Beth Ann Bovino, the U.S. chief economist for S&P Global Ratings.
The longest previous shutdown lasted three weeks during December 1995 and January 1996. It followed a budget spat between President Bill Clinton and House Speaker Newt Gingrich.
As it affects about a quarter of the government, the current shutdown disrupts fewer people than some previous funding lapses such as the 1995 closure. During other previous shutdowns, particularly in the 1970s, workers did not face furloughs.
Still, it could drag on much longer.
Talks to reopen the government crumbled this week. Trump on Thursday canceled his planned trip to the World Economic Forum in Switzerland later this month, signifying the closure could last for weeks more.