According to a whistleblower from ABC who signed an affidavit to this effect there were numerous accommodations and rules violations by ABC.
They accommodated her request for a smaller podium.
They accommodated her request for how she would look in split screen.
They agreed to instantly fact check Trump and to never fact check Harris.
Harris was given questions ahead of the debate. Trump was not.
ABC agreed yo not ask certain types of questions. No questions about Biden's fitness. No questions about Harris work as AG. No questions about corruption related to her brother in law Tony West.