Originally posted by the Voice of America. Voice of America content is produced by the Voice of America, a United States federal government-sponsored entity, and is in the public domain. House Democrats Subpoena Pentagon, Prepare to Depose Sondland in Impeachment Inquiry VOA News Three U.S. House of Representatives committees are set to question Gordon Sondland, the U.S. ambassador to the European Union, on Tuesday to find out more about the interactions between President Donald Trump and Ukrainian officials. The closed-door deposition is part of the ongoing impeachment inquiry in the House, which Trump on Monday again rejected as a "scam" perpetrated by Democrats who do not want him to win a second term in office next year. Sondland has become a prominent figure in the probe because of his efforts to get Ukraine to commit to investigate Trump's potential presidential rival, former Vice President Joe Biden, and Biden's son, Hunter. A whistleblower complaint that launched the impeachment inquiry says the day after Trump spoke by telephone with Ukraine President Volodymyr Zelenskiy, Sondland and U.S. envoy to Ukraine Kurt Volker met with the Ukrainian leader and other political figures. The whistleblower said that according to readouts of those meetings recounted by U.S. officials, "Ambassadors Volker and Sondland reportedly provided advice to the Ukrainian leadership about how to 'navigate' the demands that the President had made of Mr. Zelenskiy." .