A federal commission has approved the design concept for the Triumphal Arch that President Donald Trump wants to build at an entrance to the nation's capital. The 250-foot-tall arch would rise on federal land on the Virginia side of the Potomac River, at the end of Memorial Bridge from the Lincoln Memorial in Washington. The U.S. Commission of Fine Arts will review an updated design at a later date before a final vote. The arch is one of several projects, including a new White House ballroom, that the Republican president is pursuing to leave a lasting imprint on the city.