She is just stupid.
as a rock
Likely the result of relatively low inteligence coupled with a lack of self-confidence backed by a desperate need to sound thoughtful and wise when you know you’re neither. The nervous cackling is a dead giveaway.
Add the nervous laugh to her communications and it becomes someone coming back from the bar, talks like a word salad bar.
Yes, she is stupid.
But, she is also lazy. As VP she couldn’t answer basic questions because she refused to read the briefings.
So, she was unprepared and stupid.