WASHINGTON — The nation’s capital sued to block President Donald Trump’s takeover of its police department in court on Friday, hours after his administration escalated its intervention into the city’s law enforcement by naming a federal official as the new emergency head of the department.

Federal troops are patrolling the National Mall and neighborhoods across Washington while President Donald Trump's administration exerts extraordinary power over law enforcement in the nation's capital.

Some people in Washington, D.C., took to the streets Wednesday night to protest President Trump’s deployment of the National Guard and federal takeover of the D.C. Metropolitan Police Department.

City crews cleared a homeless encampment Thursday between the Kennedy Center and Lincoln Memorial, as concerns mount over President Donald Trump’s push to extend federal control of Washington, D.C.’s police department beyond the legal 30-day limit.

President Trump has given homeless people in Washington, D.C., an ultimatum, sparking concern among human rights advocates: Accept shelter treatment or go to jail. Donald Whitehead, executive director of the National Coalition for the Homeless,