Gordon David Sondland is an American businessman. He is the founder and chairman of Provenance Hotels. He also served as the United States Ambassador to the European Union from 2018 to 2020. In November 2019, Sondland testified as a witness at the impeachment inquiry against Donald Trump. After refusing to resign, he was fired by Trump on February 7, 2020, two days after the conclusion of Trump's impeachment trial.

The inquiry process which preceded the first impeachment of Donald Trump, 45th president of the United States, was initiated by then-House Speaker Nancy Pelosi on September 24, 2019, after a whistleblower alleged that Donald Trump may have abused the power of the presidency. Trump was accused of withholding military aid as a means of pressuring newly elected president of Ukraine Volodymyr Zelensky to pursue investigations of Joe Biden and his son Hunter and to investigate a conspiracy theory that Ukraine, not Russia, was behind interference in the 2016 presidential election. More than a week after Trump had put a hold on the previously approved aid, he made these requests in a July 25 phone call with the Ukrainian president, which the whistleblower said was intended to help Trump's reelection bid.