There's really nothing there. She's not just dumber than a box of rocks. She's dumber than a box with no rocks in it. In a head-butting contest with Patty Murray, it would be a tie.
That's ~powerful~ dumb.
We'd never have heard of her outside of annoying PTA meetings, if it weren't for the part where she married a guy that invented a thing called "Nintendo". This made her rich faster than she could spend the money and therefore fooled her into thinking that she was smart. The rest is this recent bit of embarrassing state history.
Terrifying!
Just goes to show. Money can't buy you love, but it can buy you plenty of votes. :-/