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Mr. Marshall's letter comes after a story circulating on social media purported that an ABC News whistleblower claims the network tipped the scales for Ms. Harris by providing her with sample questions ahead of the Sept. 10 debate, giving her a shorter podium and making her look better in the split-screen shots, among other advantages.
Lawmaker accuses ABC, Harris campaign of collusion, urges disclosure of pre-debate communication →
ABC News said both candidates have agreed to the original presidential debate set for Sept. 10.
Trump offers three debates with Harris, says he will beat 'barely competent' substitute for Biden →
