Washington, May 16 (RHC)-- In the United States, more lawmakers on Capitol Hill are calling on President Donald Trump to surrender any recordings of former FBI head James Comey.  

In a highly unusual move, Trump last week appeared to suggest on Twitter that he might have tapes of conversations with Comey and warned the former director of the Federal Bureau of Investigation against talking to the media.  Trump and a White House spokesman declined to confirm or deny whether such recordings exist. 

Republican Senator Lindsey Graham of South Carolina said the White House must "clear the air" about whether there are any taped conversations.  Speaking to reporters, Graham said: "You can't be cute about tapes.  If there are any tapes of this conversation, they need to be turned over." 

Trump sparked a political firestorm when he abruptly fired Comey last week.  The FBI has been investigating alleged Russian meddling in the U.S. election and possible ties between Moscow and the Trump campaign.  Democrats have accused Donald Trump of attempting to thwart the FBI's probe and have called for some type of independent inquiry into the matter.