National Portrait Gallery April 29, 2023 1:11 pm National Portrait Gallery Opens New US Imperialism Exhibit The Smithsonian National Portrait Gallery’s exhibit “1898: U.S. Imperial Visions and Revisions” is now open for visitors to explore the history of U.S. expansion overseas. Local 1:51 Video shows Maryland ATM thieves using car to rip door off Landover Hills store 3:06 Security barriers installed at George Washington U. after DC police clear encampment 2:07 Montgomery County students who overcame truancy celebrate graduation 3:20 Boil water advisory in effect in Northwest DC after water main break 25:58 DC police clear GW encampment: The News4 Rundown