US PoliticsImpeachment Witness Marie Yovanovitch Signs Book Deal Reportedly Worth 7 FiguresSaveMark Us Preferred on GooglePrintFormer U.S. Ambassador Marie Yovanovitch speaks at Georgetown University in Washington on Feb. 12, 2020. Tasos Katopodis/Getty ImagesIvan Pentchoukov2/23/2020|Updated: 2/23/2020Former U.S. Ambassador to Ukraine Marie Yovanovitch, a key witness in the impeachment inquiry of President Donald Trump, has signed a book deal.Publisher Houghton Mifflin Harcourt confirmed that it acquired the rights to Yovanovitch’s as-yet-untitled memoir.We had a problem loading this article. Please enable javascript or use a different browser. If the issue persists, please visit our help center.