The brutal reason Diane Sawyer ghosted the Barbara Walters tribute has been revealed.

RadarOnline.com can report how in Hulu’s new special, Barbara Walters: Tell Me Everything, the late journalist's iconic career was honored by some of the biggest stars in Hollywood, including Andy Cohen , Oprah Winfrey and Kate Couric – but Sawyer's message was loud and clear. Article continues below advertisement

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According to Hollywood insider Rob Shuter, who writes on Substack : "Diane wanted nothing to do with it. She and Barbara had one of the iciest rivalries in TV news. Sub-zero, baby."

A former producer added: "Barbara thought Diane was calculating. Diane thought Barbara wouldn’t pass the torch."

Both Sawyer and Walters held

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