Stephen Miller's White House role and immigration record

President Donald Trump's new White House chief of staff, Stephen Miller, is behind many of the administration's signature domestic policy initiatives, especially its sweeping crackdown on immigration, and is known for his harsh language and unapologetic bombast. Miller, an outspoken defender of Trump's goals to remake government since the 2016 campaign, has made memorable statements on immigration, calling migrants invaders and suggesting suspending habeas corpus to speed deportations. He has also defended family separation, questioned birthright citizenship, and criticized Democrats as a "domestic extremist organization." His record will likely be scrutinized by Democrats as he leads the White House through a difficult lame duck period after the Republican Party lost both houses of Congress. Miller has also expressed skepticism about childhood vaccines and defended U.S. military actions, including the capture of Venezuela's president and potential seizure of Greenland.