Jared Kushner, former President Donald J. Trump’s son-in-law and senior adviser, was featured prominently in videotaped testimony saying that he was engrossed in pushing through dozens of pardons at the end of the administration and dismissed threats of resigning by the White House counsel as “whining.”

The video showed Representative Liz Cheney asking Mr. Kushner about repeated threats to resign made by the counsel, Pat A. Cipollone, over the questionable conduct by Mr. Trump.

“Jared, are you aware of instances where Pat Cipollone threatened to resign?” she was shown asking.

“Like I said, my interest at that time was on trying to get as many” pardons done as possible, Mr. Kushner said. “And I know him and the team were always saying, we are going to resign, we are not going to be there if this happened, if that happens. So I kind of took it up to be just whining, to be honest with you.”