People participate in a protest against the government shutdown at the Hart Senate Office Building on Capitol Hill in Washington, the United States, Jan. 23, 2019. Federal workers held 33 minutes of silent protest here, one minute for each day the shutdown has lasted. The record-long shutdown has affected a quarter of the federal government, forcing about 420,000 "essential" employees to work without pay, and 380,000 others to take unpaid leave. (Xinhua/Liu Jie)