An anonymous reader quotes a report from ABC News: President Donald Trump's embattled national security adviser Michael Flynn, who faced questions about a call to the Russian ambassador prior to the inauguration, has resigned. Retired Army General Keith Kellogg was named acting national security adviser to replace Flynn. ABC News reported Monday that Flynn called Vice President Mike Pence on Friday to apologize for misleading him about his conversation with the ambassador in November. Flynn previously denied that he spoke about sanctions the U.S. imposed on Russia for its suspected interference in the 2016 election, a claim repeated by Pence in January. An administration official later claimed Pence was relying on information provided to him by Flynn. In his resignation later, Flynn cited the "fast pace of events" for "inadvertently" briefing "the Vice President Elect and others with incomplete information regarding [his] phone calls with the Russian Ambassador." You can view Flynn's full resignation letter, as provided by the White House, here.