President Donald Trump (C) holds a law enforcement roundtable on sanctuary cities, in the Roosevelt Room at the White House on March 20, 2018 in Washington, D.C. Trump was joined by Attorney General Jeff Sessions (L), and Homeland Security Secretary Kirstjen Nielsen, and Thomas Homan, acting director of Immigration and Customs Enforcement.President-elect Donald Trump's pick to carry out his sweeping deportation plans may be able to operate with more power, and less oversight from Congress, than some of his ...