Noem was on the short-list to be Trump's running mate.
After a sweeping victory over Vice President Kamala Harris on Nov. 5, President-elect Donald Trump is now set to become just the second ever to serve nonconsecutive terms in office.
Trump has wasted no time in moving to assemble his team for a second term in the White House -- naming Susie Wiles as his chief of staff, Florida Rep. Mike Waltz as his national security adviser and Tom Homan as his "border czar," among other positions.
Inauguration Day is Jan. 20.
Ahead of his return to power in January, Trump is announcing who he wants to fill Cabinet positions and other key roles inside his administration.
They include some of his staunchest allies on Capitol Hill and key advisers to his 2024 campaign.
Here is a running list of the people Trump has selected, or is expected to select, to serve in his administration.
Trump has nominated Pete Hegseth to be his defense secretary.
Hegseth is currently a host of "Fox & Friends" as well as an Army combat veteran.
"Nobody fights harder for the Troops, and Pete will be a courageous and patriotic champion of our 'Peace through Strength' policy," Trump said in a statement.
The role requires Senate confirmation.
Trump announced that John Ratcliffe is his pick for director of the Central Intelligence Agency.
The role requires Senate confirmation.
Ratcliffe was a former director of National Intelligence during Trump's first term.
"I look forward to John being the first person ever to serve in both of our Nation’s highest Intelligence positions," Trump said in a statement, adding that Ratcliffe "will be a fearless fighter for the Constitutional Rights of all Americans."
Trump picks John Ratcliffe for CIA director
Trump has named attorney Bill McGinley as his White House counsel, his transition team announced.
McGinley served as the White House Cabinet secretary during Trump's first term and has served as general counsel at the National Republican Senatorial Committee.
"Bill is a smart and tenacious lawyer who will help me advance our America First agenda while fighting for election integrity and against the weaponization of law enforcement," Trump said in a statement.
The White House counsel is appointed by the president.
Trump has tapped his longtime friend and donor Steve Witkoff as his special envoy to the Middle East, the president-elect's transition team announced.
Witkoff, along with former Sen. Kelly Loeffler, has been leading the inauguration efforts.
Witkoff has held multiple fundraisers for Trump throughout the election cycle and accompanied him to numerous campaign rallies. He was also golfing with Trump during the alleged second assassination attempt in West Palm Beach earlier this year.
-ABC News' Soo Rin Kim, Kelsey Walsh and Lalee Ibssa
