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. Former Trump Adviser Next in Line to be Asked About Ukraine Associated Press WASHINGTON - President Donald Trump's top adviser for Russian and European affairs is leaving his job at the White House just as he's scheduled to testify before the House impeachment investigators, a senior administration official said. Tim Morrison owes his job at the National Security Council to Trump, but his testimony Thursday in the House impeachment inquiry might be central to a push to remove the president from office. A senior administration official said Wednesday that Morrison "has decided to pursue other opportunities." The official, who was not authorized to discuss Morrison's job and spoke only on the condition of anonymity, said Morrison has been considering leaving the administration for "some time." Morrison has been in the spotlight since August when a government whistleblower said multiple U.S. officials had said Trump was "using the power of his office to solicit interference from a foreign country in the 2020 U.S. election." Now it's his turn in the impeachment probe's hot seat. Morrison, tall and lean with an authoritative voice, will be asked to explain that "sinking feeling" he got when Trump demanded that Ukraine's president investigate former Vice President Joe Biden and meddling in the 2016 election. Morrison, who is in his 40s, is a political appointee in the Trump White House, brought on board by former national security adviser John Bolton to address arms control matters and later shifted into his current role as a top Russia and Europe adviser. It was there that he stepped into the thick of an in-house squabble about the activities of Trump's personal attorney Rudy Giuliani, who had been conversing with Ukrainian leaders outside of traditional U.S. diplomatic circles. Known as a "hawk" in national security circles, Morrison is set to be the first political appointee from the White House to testify before impeachment investigators. The probe has been denounced by the Republican president, who has directed his staff not to testify. Regardless of what he says, GOP lawmakers will be hard-pressed to dismiss Morrison, formerly a longtime Republican staffer at the House Armed Services Committee. He's been bouncing around Washington in Republican positions for two decades, having worked for Rep. Mark Kennedy, R-Minn., Sen. Jon Kyl, R-Ariz., and as a GOP senior staffer on the House Armed Services Committee, including nearly four years when it was chaired by Rep. Mac Thornberry, R-Texas. References Visible links Hidden links: 1. file://localhost/usa/us-politics/us-house-expected-pass-resolution-impeachment-process .