Overnight Defense: Another Defense official resigns | Pentagon chief says military 'remains strong' despite purge | Top contender for Biden DOD secretary would be historic pick Happy Friday and welcome to Overnight Defense. I'm Ellen Mitchell, and here's your nightly guide to the latest developments at the Pentagon, on Capitol Hill and beyond. Just How Badly Does Trump Want Revenge?Angry about his loss, the president can make life difficult for the officials he believes have crossed him. Two Homeland Security officials forced to resign by White HouseTwo senior Department of Homeland Security officials have been forced to resign by the White House, according to sources familiar with the resignations. Defense deputy chief of staff latest Pentagon official to resignThe deputy chief of staff for the secretary of Defense has resigned, a Department of Defense (DoD) official confirmed to The Hill Friday. New Pentagon chief says military 'remains strong' following leadership purgeNewly appointed acting Defense Secretary Christopher Miller said Friday that the military “remains strong” following President Trump's abrupt ouster of his predecessor and the resignations of several top Defense officials. National Security Experts Alarmed at Trump’s “Dictator Moves” at the PentagonThe president has purged Pentagon leadership—including Defense Secretary Mark Esper—and installed his cronies in their place. Ex-CIA Director Brennan: Trump 'score settling' with Pentagon changesFormer CIA Director John Brennan argued Friday that President Trump was “score settling” with recent personnel changes at the Pentagon. The purge at the Pentagon - The Boston GlobeThe potential for sudden troop withdrawals should spur Congress to curtail Trump's powers in his final weeks as president.