UPDATE March 12, 11:38am EST:On Saturday a senior congressional aide said the request for evidence by Monday was made in a letter sent by the committee chairman, Rep. Devin Nunes, R-Calif., and the panel's ranking Democrat, Rep. Adam Schiff, D-Calif., according to the aide, who wasn't authorized to discuss the request by name and requested anonymity.
Obama's director of national intelligence, James Clapper, has said that nothing matching Trump's claims had taken place, but Trump has still asked Congress to investigate.
UPDATE March 8, 1:14 p.m. EST:
Sens. Lindsey Graham (R-SC) and Sheldon Whitehouse (D-RI) wrote a letter requesting information from the FBI and Attorney General on possible wiretapping of President Trump.
Graham is the chair of a Senate subcommittee on crime and terrorism. Whitehouse is ranking member.
The Senators wrote that they took the accusations and their implications "very seriously."
ORIGINAL STORY: The House Intelligence Committee is expected to hold its first public hearing on Russia's involvement in the 2016 presidential election on March 20. FBI director James Comey, National Security Agency director Michael Rogers, former CIA director John Brennan, former director of National Intelligence James Clapper and former Attorney General Sally Yates are expected to be among the planned witnesses, Reuters reported.
Committee Rep. Devin Nunes, R-Calif., made the announcement during a Tuesday afternoon.
On the topic of President Trump's recent claims that the Obama administration had wiretapped Trump Tower before the election, Nunes said, "I have not seen that evidence."
When asked whether Trump should have made such consequential accusations, Nunes replied, "Well, he's the the President of the United States, not me, so he can do what he likes."
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