Republican presidential candidate Donald Trump is seeking $10 million in damages from a former senior campaign consultant, Sam Nunberg, alleging that Nunberg leaked confidential information to reporters in violation of a nondisclosure agreement.
In a court filing obtained by The Associated Press, Nunberg accuses Trump of trying to silence him "in a misguided attempt to cover up media coverage of an apparent affair" between senior campaign staffers.
The document cited a New York Post story about a public quarrel between the staffers published last month.
The legal dispute reflects Trump's efforts to aggressively protect the secrecy of his campaign's inner workings.
The case is spelled out in court documents that sought to block private arbitration proceedings that Trump initiated in May.