Immigration adviser Steven Miller appears to have been tapped by Donald Trump for the position of deputy chief of staff for policy at the White House, according to a CNN reporter citing two sources with knowledge of the new U.S. president’s intentions.

Miller was a senior policy adviser during Trump’s first administration and a central figure in many of the Republican’s policy decisions.

Notably, 67-year-old Suzie Wiles, Trump’s campaign manager, is the one who will fill the role of White House chief of staff when the Republican officially takes office.