Gordon Sondland, the U.S. ambassador to the European Union, will testify before the House Intelligence Committee on Wednesday, Nov. 20, as part of the impeachment probe into President Donald Trump. Sondland recently revised his closed-door testimony to state that he had told an adviser to Ukrainian President Volodymyr Zelensky that U.S. aid would not be resumed unless Zelensky made "the public anti-corruption statement that we had been discussing for many weeks.” Sondland is scheduled to testify in the morning. Afterwards, Laura Cooper, a deputy assistant secretary of defense, and David Hale, the under secretary of state for political affairs, will testify in the afternoon. The impeachment inquiry centers on a July 25 call in which Trump asked Zelensky to investigate former vice president and 2020 presidential candidate Joe Biden and his son, Hunter.