Tariq dies on the wrong hill sometimes.
She's NOT doing a white supremacist sign. Thats the "OK" symbol where she's approving of an answer he gave during testimony. She works for Kavanaugh.
Now, I'm not saying there aren't white supremacist signals or that Kavanaugh isn't one.
But THAT SPECIFIC INCIDENT was NOT a white supremacist signal.
The whole point of a 'dog whistle' is to do it with a level of somewhat plausible deniability. You use dog whistles when there is a potentially alternate explanation you can use to 'splain away your racism.
e.g. a black person shrieks and a white person says "wow well aren't you a happy monkey!", then defends themselves by saying "what? I only called him a monkey because he sounded like one! I didn't just say it unprovoked!"