Officers spotted him walking near 17th Street NW, just a block from the White House and began following him until backup arrived. When Secret Service ... they made another startling discovery ...

A witness who was just outside the Pennsylvania rally where a gunman apparently attempted to assassinate Donald Trump Saturday night said he tried to alert Secret Service agents to a rifle ...

Then the Secret Service spotted the muzzle of a rifle sticking out of a fence in bushes at Trump's West Palm Beach golf club, and everything changed. For the second time in just over two months ...