Kim Kardashian takes the stand in Blac Chyna trial

Kim Kardashian testified Tuesday that she does not remember writing most of the emails and text messages attributed to her in the wake of an alleged beating of her brother, Rob Kardashian, by his then-fiancee, Blac Chyna, in 2016, but she also did not deny authoring them and said they demonstrate that the Kardashian/Jenner clan lacked the power to cancel the second season of "Rob & Chyna."