The last U.S. government shutdown occurred from December 22, 2018, to January 25, 2019. It lasted 35 days, making it the longest government shutdown in U.S. history. This shutdown was caused by a political impasse over funding for a U.S.-Mexico border wall requested by then-President Trump. During the shutdown, about 800,000 federal employees were affected, with many furloughed or working without pay.