Trump has moved quickly to fill top positions in his White House and Cabinet since his election victory last week including hiring senior campaign adviser Susie Wiles as his White House chief of staff and nominating Sen. Marco Rubio as secretary of State and former Rep. Matt Gaetz as attorney general.

After serving as the president-elect’s chief campaign spokesman, Mr. Cheung will return to the White House next year.

Both positions could be influential in the new administration, helping to develop its public messaging and internal workforce.