If the president is not above the law he should be charged by way of impeachment by the US House of Representatives,” Mr Green said in a press conference.
“Our country is in a state of crisis. Every day Donald Trump remains president puts our democracy at risk. It’s time to take drastic, yet necessary action.”
Nancy Pelosi, the former minority leader of the Senate, has said that Mr Trump’s behaviour is “at best, a grave abuse of executive power”.
“At worst, he has obstructed justice,” she added.
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