The VP candidates debate was scheduled on Fox. When Harris selects her running mate, he will debate Vance on Fox.The debate already WAS scheduled on Fox. Harris has been slated to debate on Fox for MONTHS.
Meanwhile, the ABC debate was supposed to be with BIDEN. Biden dropped out. And Trump is now (probably by ABC's design) now in the midst of suing ABC for libel. So Trump can't very well debate there (nor expect to get treated fairly).
There is no move, chicken nor otherwise. Trump is a former president. Trump is the de facto presidential candidate. Harris ain't shit. She is a do-nothing nobody crazy senator who hid behind Biden for 3 years doing absolutely nothing. She don't get to call the shots. And she said she WANTED to debate Trump TO HIS FACE.
So, nothing stopping her from debating Trump at all now EXCEPT HERSELF.
But that is OK. Everyone realizes that Harris never intended to debate anyone live, VP or otherwise. She don't have the chops for it and would only make herself look an even bigger ass. When she gets up on ABC and they ask her stupid softball questions like she's used to answering (when not dancing with Beyonce), and gives her patent giggly answers, she will just look even dumber.