The U.S. Secret Service will conduct a routine threat exercise at the White House between 8 p.m. and 1 a.m. Friday, as President Trump is out of town for a summit with Russian President Vladimir Putin.

The Secret Service warned that residents could hear simulated gunfire coming from the White House and should not be alarmed. All roads will be accessible, but some sidewalks along the White House complex will be closed.

The Secret Service has a double mission to protect the president and conduct investigations on potential........

© The Hill