Laura Cooper, deputy assistant secretary of defense for Russia, Ukraine and Eurasia, arrives to testify in closed session as House Democrats’ continue their impeachment investigation of President Donald Trump, at the Capitol in Washington, Wednesday, Oct. 23, 2019. House committees are trying to determine if President Donald Trump violated his oath of office by asking a foreign country, Ukraine, to investigate his political opponent, former Vice President Joe Biden, and his son Hunter Biden. (AP Photo/J. Scott Applewhite)