This was sort of a gratuitous offering from Mr. Horowitz, as he was not directly charged with unearthing political bias; but his “finding” has given the Obama-era officials the opportunity to claim their motives were pure, and has given the Democrats in Congress something to grasp onto to show that the affair was completely justified and above board.
But, whether there was “political bias” or not, or whether it was found or not, is a mere footnote to the main thrust of the Horowitz investigation, which shows how dishonest, unfair, corrupt, incompetent, unjustified and unnecessary was the investigation into the Trump campaign.