Couple things. The whole thumbs down is a nod to McCain who she imagines herself as when he thumbs down and killed Trumps repeal and replace of Obamacare. (Difference is she’s done stuff legit on principal and do what’s right why McCains actions were those of a bitter old man who didn’t like being called out by Trump). As for what she wears it’s nothing compared to some of the ridiculous crap Maxine Waters has work in public appearances and demonstrations.
Side note I’m very disappointed how ASU Police or even Arizona DPS failed to prosecute those clowns who went after her in a bathroom on the college campus when she was speaking. It was a clear violation of AZ law and nothing happened. Sadly I wonder if it was politically motivated in the non action.