John Kelly praised former NSC staffer Army Lt. Col. Alexander Vindman during a speech at Drew University on Wednesday.

Former White House chief of staff John Kelly said Wednesday that Lt. Col. Alexander Vindman, a key witness in President Donald Trump's impeachment inquiry, was right to raise concerns about Trump's July call to Ukraine's president, The Atlantic reported.

President Donald Trump responded to criticism from his former Chief of Staff Gen. John Kelly on Thursday.

Former White House chief of staff John Kelly forced McEntee out over issues with the young aide's security clearance.

Former White House chief of staff John Kelly forced McEntee out over issues with the young aide's security clearance.

President Donald Trump blasted his former chief of staff John Kelly on Thursday after Kelly spoke at length in defense of Lt. Col. Alexander Vindman.

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WASHINGTON (AP) — President Donald Trump on Thursday lashed out against former White House chief of staff John Kelly for being disloyal after the ex-adviser came to the defense of a former...

President Trump on Thursday tore into his former chief of staff, John Kelly, deriding his job per...

Former White House chief of staff John Kelly said Wednesday that Lt. Col. Alexander Vindman, a key witness in President Donald Trump's impeachment inquiry, was right to raise concerns about Trump's July call to Ukraine's president, The Atlantic reported.

President Trump's former chief of staff John Kelly said late Wednesday the National Security Council staffer ousted from the White House was just doing his job when he raised concerns about the president's July phone call with the Ukrainian president.