Watching the full clip it sounds like she's trying to say it ironically. She frames it first by doubting the legitimacy of Biden winning the presidency. That bytch is crazy but I knew she wasn't that crazy to go at them people so boldly like that even if she's one of them. Timestamped:
That being said, the thing about irony is that it can be used as a double bind to mask someone's true feelings and get a particular message out, if people come at you, you can just default back to "I was just being ironic"; to the other side you seem ingratiated to the "cause". It's telling she used such a particular popular right wing conspiracy theory.