Kylie Jenner, Khloe Kardashian thought Blac Chyna hurt Rob, 'brand' - Insider

"The sisters are clearly concerned for our brother's safety and the credibility of the brand," Khloe Kardashian wrote in a 2016 email.

Two of the Kardashian-Jenner sisters reached out to E! Network executives in December 2016 to express concern about the tumultuous relationship between their brother Rob Kardashian and his then-fianc… [+3389 chars]

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