US security agency did not ask GCHQ to spy on Donald Trump

America's National Security Agency (NSA) did not ask Britain's GCHQ to spy on Donald Trump when he was running for president, the organisation's director, Admiral Mike Rogers, has insisted.

Probed on the allegations during questioning at US Congressional hearings, Admiral Rogers said such a move would "violate" US law and go against the "Five Eyes" intelligence sharing arrangements between America, Britain, Canada, Australia and New Zealand.