Then is Bill Barr lying?  

Some quotes from Barr:

“My attitude was: It was put-up or shut-up time,” Barr said. “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."

After the 2020 election, the Justice Department launched investigations into widespread voter fraud across the country in key battleground states.

In the aftermath, he launched his own informal inquiries into the most popular claims made by Trump's close allies, alongside the DOJ's official investigations.

Asked by Trump why he would tell the AP that there was no fraud in the election, Barr replied "because it’s true.” The conversation continued with Trump referring to himself in the third person, telling Barr: “You must hate Trump. You must hate Trump.”

“You know, you only have five weeks, Mr. President, after an election to make legal challenges,” Barr told Trump. “This would have taken a crackerjack team with a really coherent and disciplined strategy. Instead, you have a clown show. No self-respecting lawyer is going anywhere near it. It’s just a joke. That’s why you are where you are.”