President Donald Trump's personal attorney, Michael Cohen, confirmed to NBC News that he has received requests for information from the Senate and House intelligence committees as part of their probes into Russian interference in the U.S. election.

A congressional aide said the request letters, first reported by ABC News, were the same ones sent to former Trump aides Carter Page, Roger Stone, Paul Manafort, Mike Flynn and others. Those letters sought information about Russian contacts, and asked the recipients to turn over any communications with the Trump campaign about Russia.

Cohen is a long-time lawyer for both Trump and his business organization. He has served as executive vice president of the Trump Organization and special counsel to Trump.

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In the dossier on Trump prepared by former British spy Christopher Steele, Cohen was alleged to have attended a secret meeting in Prague to discuss Russia's hacking of Democratic targets, something Cohen has adamantly denied to NBC News and others in the past.

In February, Cohen told NBC News he was in Los Angeles when the Prague meeting was supposed to have occurred, taking his son to a meeting with the baseball coach at the University of Southern California.

Trump's critics, he said, "are looking to malign President Trump, diminish his historic win and to undermine his presidency by claiming he didn't win — that it was given to him by the Russians."