The last federal shutdown ran for 35 days, from Dec. 22, 2018, to Jan. 25, 2019, making it the longest closure in U.S. history. At the time, the Senate had failed to pass a funding bill that included $5.7 billion requested by President Donald Trump to help construct the U.S. southern border wall.

Congress remains deadlocked over health care and spending as Wednesday government shutdown deadline approaches, threatening federal worker paychecks.