"On top of giving investigators the OK, Karl reports that Barr began his own unofficial inquiry into the former president’s claims. Barr told Karl that he suspected all along that Trump was lying, and that the time had come for Trump to provide real evidence or move on.
“My attitude was: It was put-up or shut-up time. If there was evidence of fraud, I had no motive to suppress it. But my suspicion all the way along was that there was nothing there. It was all bullshit,”
https://www.rollingstone.com/politics/politics-news/trump-election-fraud-bullshit-bill-barr-1189874/
https://www.theatlantic.com/politics/archive/2021/06/william-barrs-trump-administration-attorney-general/619298/
