Rudy Giuliani, a former federal prosecutor and mayor of New York City, shared a swiftly debunked conspiracy theory Tuesday that holds routine language in a new court filing shows President Joe Biden was plotting to assassinate former President Donald Trump. Giuliani took to X late Tuesday night to echo a claim first made by Rep. Marjorie Taylor Greene that newly revealed language in Trump’s Mar-a-Lago search warrant regarding the use of deadly force. “Newly released documents in relation to the Mar-a-Lago raid show that armed FBI agents were prepared to confront President Trump and engage with…