Interesting to see the power cognitive dissonance has. Believers in the grand conspiracy to steal the election from DJT have convinced themselves through the echo chambers of Facebook, Twitter, Parlor, and associated websites that the evidence is simply indisputable.
Thus AG Barr's comment that the DOJ, which includes the FBI, hasn't found evidence of fraud that would rise to the level of changing the election outcome, is simply inconceivable.
Therefore it's seen as just more evidence of how great a hold the anti-Trump deep state has and Barr must either be a knowing part of it or incompetent.
The power of cognitive dissonance boggles the mind.