Elisabeth was perfectly ok with Trump when he came on the show with his trophy wife hawking her costume jewelry and he called her the dumbest person on tv, so I'm not sure why she behaved this way with Kathy.
Whoopi quite often shows a distinct lack of interest in the guests. She rarely asks questions and looks like she's bored quite often.
Elisabeth was yawning and stretching, trying to act disinterested but was quite clearly seething about something.
Kathy apparently called her a moron the other day, I guess that might be it.
Perhaps Elisabeth thinks Kathy should have to apologise to her like Elisabeth had to apologise to Erin Andrews (even though I still don't consider that to be an apology).