Charles Kupperman
Charles Martin Kupperman[1] (born November 9, 1950) is a former United States Deputy National Security Advisor for President Donald Trump, a position he held from January to September 2019.He also was the acting United States National Security Advisor for eight days in September 2019 between John Bolton and Robert C. O'Brien.[16][17] The Council on American Islamic Relations said that it was "appalled" by Kupperman's appointment because of the Center for Security Policy's record of anti-Islam statements.[20] Kupperman was scheduled to testify on October 28, 2019, before three House committees handling the impeachment inquiry against Donald Trump with respect to the Trump-Ukraine scandal.[20] Subsequently, Kupperman filed a lawsuit asking a federal judge to decide whether or not he must comply with the House subpoena or the Trump Administration's request to not testify.