Well, a bit unexpectedly, Tulsi was the one who brought up Kamala's abysmal record as California's Attorney General tonight. Kamala just sputtered a non-answer in return:

Tulsi on Kamala

Still, Tulsi was mostly sidelined in the debate (again) and got only 7 minutes of speaking time, versus Biden's 20 minutes and Kamala's 18 minutes.