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The US Secret Service is facing questions after the
of Donald Trump on Saturday. A shooter climbed onto the
of a building that was 130 metres from where Mr Trump was speaking at a
. People at the
told police there was a man with a
on the building. There were also police inside the
. The director of the Secret Service said the shooting "was
". She said: "This is an event that never should have happened." She added: "The Secret Service is
for the protection of the
President. The
stops with me."