John Brennan, President Barack Obama’s nominee to head the CIA, had detailed, contemporaneous knowledge of the use of “enhanced interrogation techniques” on captured terrorism suspects during an earlier stint as a top spy agency official, according to multiple sources familiar with official records.

Those records, the sources said, show that Brennan was a regular recipient of CIA message traffic about controversial aspects of the agency’s counter-terrorism program after September 2001, including the use of “waterboarding.”

How deeply involved Brennan was in the program, and whether he vigorously objected to it at the time, as he has said he did, are likely to be central questions lawmakers raise at his Senate Intelligence Committee confirmation hearing, scheduled for February 7…

The official records, which include raw CIA operational message traffic that remains classified, are silent on whether he opposed the techniques while at the spy agency, said the sources, who spoke on condition of anonymity. Brennan served as deputy executive director of the agency beginning in 2001.