White House adviser tells lawmakers Trump Ukraine call raised national security concerns

A senior White House official testified on Tuesday he was so alarmed by hearing U.S. President Donald Trump ask Ukraine's…

A senior White House official testified on Tuesday he was so alarmed by hearing U.S. President Donald Trump ask Ukraine’s president to investigate a political rival, Democrat Joe Biden, that he reported the matter to a White House lawyer. Army Lieutenant Colonel Alexander Vindman became the first current White House staff member to testify in the Democratic-led House of Representatives inquiry into whether to impeach the Republican president.

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