It's been a couple of hours - in general, saying stuff like that actually does in fact get Twitter's content moderation to kick in and force you to delete the tweet, and I regularly see folks who aren't conservative get temporary suspensions for it.
She posted that tweet more like 11 hours ago. Since that time it has become somewhat infamous - I've seen it in my deliberately not-politicized timeline and separately here on HN. What is the chance their content moderation team hasn't seen it?