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FILE - In this July 19, 2017, file photo, White House Director of Legislative Affairs Marc Short talks to the media during the daily press briefing at the White House in Washington. Short, head of legislative affairs, has also expanded his portfolio, as the administration, already setting records for staff departures is facing even more in Trump's second year, along with an increasing struggle to fill vacancies in an administration shadowed by the unrelenting Russia probe, formidable congressional challenges and Trump's own low poll numbers. (AP Photo/Andrew Harnik, File)
- Andrew Harnik
FILE - In this Jan. 13, 2017, file photo, Trump deputy chief of staff for policy, Rick Dearborn, left, and senior policy adviser Stephen Miller, right, walk down the steps of the Eisenhower Executive Office Building on the White House complex in Washington. Already setting records for staff departures, President Donald Trump is facing even more in his second year, along with an increasing struggle to fill vacancies in an administration shadowed by the unrelenting Russia probe, formidable congressional challenges and Trump's own low poll numbers. Dearborn is expected to leave the West Wing in coming months. (AP Photo/Susan Walsh, File)
- Susan Walsh
President Donald Trump's Chief of Staff John Kelly, left, and White House Director of Legislative Affairs Marc Short, second from left, walk toward Marine One on the South Lawn of the White House in Washington, Friday, Jan. 5, 2018, to travel with President Donald Trump to Camp David in Maryland. (AP Photo/Andrew Harnik)
- Andrew Harnik
More departures on horizon for struggling White House staff
- By JONATHAN LEMIRE and ZEKE MILLER Associated Press
- Updated