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. Highlights of a Momentous Week of Impeachment Hearings Masood Farivar CAPITOL HILL - The U.S. House of Representatives impeachment inquiry hearings picked up steam this week, as nine current and former U.S. officials testified about President Donald Trump's controversial dealings with the Ukrainian government. The historic impeachment inquiry was triggered by a whistleblower complaint about a July 25 phone call between Trump and Ukrainian President Volodymyr Zelenskiy in which Trump prodded Zelenskiy to undertake investigations that would help Trump politically, while the administration held up nearly $400 million of military aid to Ukraine. U.S. Ambassador to the European Union Gordon Sondland delivered blockbuster testimony Wednesday, linking Trump, Vice President Mike Pence and other senior officials to what he came to believe was a quid pro quo arrangement between the administration and Ukraine. The highlights: .