Chris Wallace just has to do a mediocre job as debate moderator and hell be a genius when compared to Anderson Cooper and Martha Raddatz, et-al previous debate moderators.
The last informative debate was the Fox Business with Maria Bartiromo in the Republican Primary.
Chris Wallace views his judges as his peers in the press, not the public. His peers gave Cooper, Radditz and Holt good marks, at least in private which is all that counts to these fools. Wallace sees his mission as bringing Trump down, and elevating Crooked. He is not concerned about being obvious with that. He is obviously biased on his network, and still claims to be straight up the middle objective. He'll dial his bias UP a notch, if anything.