There is "out there" a claim of a claim of the existence of an affidavit alleging that ABC News colluded with the Kamala Harris campaign to 'throw' the debate. Supposedly they did this by giving Harris the questions in advance, accepting suggested questions from Harris, and promising not to fact check her.
The possessor of this affidavit writes it will be released this weekend. I have no idea if any of the foregoing is true, or accurate.
If it were true it would explain the observed lopsided behavior of the ABC on-screen personnel. It would also be a scandal of Watergate-like proportions and would likely end several careers, much as Dan Rather's career at CBS was ended.
We'll see what, if anything, happens. As was once said in the long-ago days of AM radio, stay tuned....
Later ... It should be noted that ABC has issued a pro-forma denial of these allegations. Not that you'd expect anything less.
I'm certain those denying collusion fervently hope their claims of innocence are true. Or at least unfalsifiable.