Apparently Tablecloth Jill doesn’t know or care what a state banquet is supposed to be. Nor does she give a flying fig that her husband is demented and her son is a criminal. Quite the First “Lady”.
She can call it a luncheon. Or a dinner. Maybe it's a gala. As long as it's not a "state dinner".
The difference is that taxpayers cover state dinners. If it's anything else, I think the President/First Lady is supposed to pay for it.
But if this does not meet the definition, Jill will have to pay for it unless she can get Soros to pick up the check.