Miller has been the architect of much of Trump's immigration agenda during both stints in the White House.

Stephen Miller, White House Deputy Chief of Staff for Policy, blasted the Supreme Court's birthright citizenship ruling as “destructive” and “outrageous.”

Miller has been the architect of much of Trump's immigration agenda during both stints in the White House.

Miller has been the architect of much of Trump's immigration agenda during both stints in the White House.

Miller: We're going to take a hard look at banning pregnant women from entering the United States. pic.twitter.com/a0QwHnJmZp