On April 28, federal investigators executed a search warrant at the Manhattan apartment and offices of Rudy Giuliani, Trump's personal lawyer, seizing cellphones, computers and other electronic equipment.The move is said to be aimed at furthering the criminal investigation into Mr Giuliani's involvement in Ukraine.
Giuliani has been implicated in a series of illegal actions in Ukraine, in violation of the Lobbying Disclosure Act.It follows Revelations that he interfered in the US presidential election by pressuring Ukrainian officials to indict Mr Biden and his son Hunter in a corruption case involving Burisma Holdings, a Ukrainian energy company.