CNN Tuesday said it has filed a lawsuit against Donald Trump and several of his top aides, seeking the immediate restoration of the network's correspondent Jim Acosta's press pass to the White House which was suspended following a testy exchange with the US president.
During a White House press conference last Wednesday, Acosta challenged Trump's use of the word "invasion" to describe a migrant caravan heading to the US from Central America.
When Acosta tried to ask a question about the Russia investigation into alleged interference in the 2016 presidential campaign, Trump told him repeatedly "that's enough" and "put down the mic".
Hours after the encounter, seen across the world, the White House, in an unprecedented move, suspended Acosta's press pass, known as a Secret Service "hard pass."