One who manipulates or controls another as by some mesmeric or sinister influence; especially a coach, mentor or industry mogul.
The Tam Paton of today is nothing like the fearsome Svengali you would see on television during the Roller years. (It is used in multiple other occasions in this book)
Donald's daughter and Svengali Ivanka is a smart, smart, smart lady with an extraordinary intellect and influence on her father.
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