President Donald Trump accused former President Barack Obama of having Trump's telephones “wire tapped” during last year's election. Obama’s top intelligence official denied the allegation Sunday. Pablo Martinez Monsivais AP
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Whether U.S. intelligence and law enforcement agencies sought a court order to monitor Trump campaign figures’ contacts with Russia has been the subject of rumors in Washington since January, when The Guardian website reported that the FBI had requested a warrant from the Foreign Surveillance Intelligence Court.

But Clapper said Sunday that he knew of no such request.