President-elect Trump announced several other additions to his new administration on Wednesday, including his picks for secretary of the Army, trade adviser, hostage negotiator and NASA administrator.

Daniel P. Driscoll of North Carolina, a U.S. Army veteran and venture capitalist, will serve as secretary of the Army. Driscoll is a senior adviser to Vice President-elect JD Vance, who fought with the 10th Mountain Division as a cavalry scout platoon leader in support of Operation Iraqi Freedom.

“I am pleased to nominate Daniel P. Driscoll of the State of North Carolina to serve as Secretary of the Army. As a former soldier, investor and political consultant, Dan brings a powerful combination of experiences to serve as a minister “Disruptor and change agent,” Trump posted on Truth Social.

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Republican presidential candidate former U.S. President Donald Trump takes the stage during a campaign rally at the Desert Diamond Arena on August 23, 2024 in Glendale, Arizona. The rally, held in partnership with Turning Point PAC and Turning Point Action, comes two weeks after Democratic presidential candidate US Vice President Harris’s rally at the same location. (Rebecca Noble/Getty Images)

Peter Navarro, who previously served as Trump’s trade adviser during the president-elect’s first term, will resume that role. Navarro returns to the White House as senior counsel for trade and manufacturing following his conviction for contempt of Congress, for which he served four months in federal prison.

“I am pleased to announce that Peter Navarro, a man who has been treated horribly by the Deep State, or whatever you want to call it, will serve as my senior adviser on trade and manufacturing,” Trump wrote Truth Social. “During my first term, few were more effective or persistent than Peter in enforcing my two sacred rules: Buy American, Hire American. He helped me renegotiate unfair trade agreements like NAFTA and the Korea-US Free Trade Agreement (KORUS) and moved every single one of my customs and trade actions FAST…”

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Former Director of the U.S. Office of Trade and Manufacturing Policy Peter Navarro speaks on stage during the third day of the Republican National Convention at the Fiserv Forum on July 17, 2024 in Milwaukee, Wisconsin. (Chip Somodevilla/Getty Images)

Adam Boehler, a businessman and former administration official, will be Trump’s special presidential envoy for hostage affairs with the rank of ambassador. Boehler was previously the first CEO of the United States Development Finance Corporation and worked with the Trump administration to negotiate the Abraham Accords.

“He has negotiated with some of the toughest people in the world, including the Taliban, but Adam knows that NO ONE is tougher than the United States of America, at least not with President Trump as their leader. “Adam will work tirelessly to achieve our greatness.” “American Citizens HOME,” Trump said.

TRUMP CHOOSES A BUSINESSMAN AND PHILANTHROPIAN AS US AMBASSADOR TO UK

This handout photo provided by SpaceX and Polaris on September 15, 2024 shows Jared Isaacman, mission commander, climbing out of the “Dragon” capsule of the manned Polaris Dawn mission after it departed off the coast of Dry Tortugas, Florida Completion of the first human crashed space mission by non-governmental astronauts of the Polaris program. (Polaris Program/AFP via Getty Images)

Finally, Trump appointed billionaire Jared Isaacman to head NASA. Isaacman is a private astronaut and employee of Elon Musk, who will lead the so-called Department of Government Efficiency (DOGE). Isaacman is CEO of payment processing company Shift4Payments and leads Polaris, a program that uses SpaceX vehicles to conduct private astronaut missions in orbit.

“I am pleased to appoint Jared Isaacman, an experienced business leader, philanthropist, pilot and astronaut, to serve as Administrator of the National Aeronautics and Space Administration (NASA),” Trump said.

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“Over the past 25 years, Jared has demonstrated exceptional leadership as founder and CEO of Shift4, building a groundbreaking global financial technology company. He also co-founded and served as CEO of Draken International, a defense and space company, for over a decade to support the U.S. Department of Defense and our allies. Jared’s passion for space, his experience as an astronaut, and his commitment to pushing the boundaries of exploration, unlocking the mysteries of the universe, and advancing the new space economy make him ideally suited to lead NASA into a bold new era.

Reuters contributed to this report.