Donald Trump hits back amid claims he concealed details of meetings with Vladimir Putin

Donald Trump's dealings with Russia have come under fresh scrutiny amid claims the US president concealed details of his conversations with President Vladi­mir Putin.  Mr Trump came out fighting on Saturday night, dismissing as "insulting" an explosive report that claimed the FBI secretly launched an investigation into whether the president was working on behalf of Russia while in office.   Even as House Judiciary Committee Chairman Jerrold Nadler said his