WASHINGTON (NEXSTAR) – President-elect Donald Trump is busy building his new administration.

He is filling key White House positions with leaders who will shape federal policy for the next four years.

The new Trump White House will be staffed with close allies of the incoming president, many of whom are familiar faces.

“It is time to put our country and our people first again,” said Sen. Marco Rubio (R-Fla.).

President-elect Trump is tapping two prominent members of Congress to lead his foreign policy agenda.

He’s expected to nominate Senator Marco Rubio to be his secretary of state, and he announced Congresswoman Elise Stefanik (R-N.Y.) will be the new United Nations ambassador.

“Standing with our allies and causing our enemies to fear us,” said Stefanik.

The incoming president is bringing back members of his former administration to spearhead immigration efforts.

His former Ice Director Tom Homan will serve as the new border czar.

“To the millions of illegal aliens that Joe Biden’s released in our country in violation of federal law: you better start packing now,” said Homan.

Also returning to be deputy chief of policy is Stephen Miller, who is best known as the advisor behind the controversial Trump era family separation policy.

“We can be a country that doesn’t let illegal aliens violate our borders and kill and murder American children,” said Miller.

Plus, President-elect Trump says he will appoint former congressman Lee Zeldin to be head of the Environmental Protection Agency.

As the roster grows Democrats say they’re increasingly concerned.

“We’re going to continue to see a number of people with disturbing histories being appointed to many of these positions,” said Rep. Pramila Jayapal (D-Wash.).

President-elect Trump is also urging Senate Republicans to allow him to make recess appointments so that he can fast track his picks without needing Senate confirmation.