FBI agents and other federal law enforcement agents walk around the neighborhood near the Nationals Stadium in Washington, D.C. on Sunday. (Tyrone Turner/WAMU | for NPR)WASHINGTON — Scores of federal agents fanned out across Washington D.C. on Sunday night, after President Donald Trump promised a swift crackdown on crime and homelessness in the nation’s capital. Nice Guy.’ We want our Capital back.”Federal police are seen in Washington, D.C. on Sunday in the Navy Yard and Nationals stadium area. Writing on social media, meanwhile, Trump said purging homeless people from Washington, D.C., would be part of a wider effort to beautify the capital. D.C police are seen on the streets in Washington, D.C. on Sunday.