Two witnesses seen as crucial to the case against President Trump in the impeachment inquiry testified Wednesday. Jim Lo Scalzo/Getty Images hide caption
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William Taylor
Top State Department official George Kent (left) and acting U.S. Ambassador to Ukraine William Taylor are sworn in to testify during the first public Trump impeachment hearing on Wednesday. Andrew Harnik/AP hide caption
Ambassador William Taylor is the first witness to appear in the first public impeachment hearing on Wednesday. He's a career diplomat who outlined the effort to get Ukraine's president to commit to political investigations in return for military assistance. Andrew Harnik/AP hide caption