President-elect Trump announced a series of appointments as his team prepares to move into the White House next year.

The new president announced Jamieson Greer as his choice to be the next U.S. trade representative. Greer previously served as chief of staff to Trade Representative Robert Lighthizer during Trump’s first term when the administration imposed tariffs on China and other countries.

In announcing Greer’s nomination, Trump said in a statement that Greer was instrumental in his first term in imposing tariffs against China and other countries and replacing the trade agreement with Canada and Mexico, “making it much better for American workers.” “.

If confirmed by the Senate, Greer would be responsible for negotiating directly with foreign governments on trade agreements and disputes, as well as membership in international trade bodies such as the World Trade Organization.

Also nominated is Jim O’Neill to serve as assistant secretary of Health and Human Services (HHS) alongside Robert F. Kennedy Jr., who has been selected to lead the agency.

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Jim O’Neill arrives at Trump Tower in New York City. (Photo by Drew Angerer/Getty Images)

O’Neill, who served as principal deputy secretary of HHS, “will fight together to ensure that every American, and especially our most precious resource, our children, live long and healthy lives and make America great and healthy again!” Trump said.

Jamieson Greer is President-elect Trump’s nominee for U.S. Trade Representative. (USCC)

Trump also named Vince Haley, who served as a speechwriter during his campaign, as director of the Domestic Policy Council and Kevin A. Hassett as head of the White House National Economic Council.

“I am proud to announce that Vince Haley, who served as director of policy and speechwriting on my winning campaign, will lead my domestic policy agenda as director of the Domestic Policy Council,” Trump said in a statement.

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“Vince helped lead the speechwriting department during my first term and worked to convey our message to the public,” he added. “Before joining my 2016 campaign, he worked for 12 years in various roles for Newt Gingrich, a man I respect greatly.”

Haley served as political director and campaign manager for Gingrich’s 2012 presidential campaign.

Vince Haley during Trump’s podium check at the Fiserv Forum before the start of the Republican National Convention session in Milwaukee on July 17. (Bill Clark/CQ-Roll Call, Inc via Getty Images)

In his new role, Haley will lead Trump’s domestic policy agenda, the new president said.

Economist Kevin Hassett, 62, was named director of the White House National Economic Council, bringing a key proponent of tax cuts into the Trump administration. He played a crucial role in the design and passage of the Tax Cuts and Jobs Act of 2017, Trump said.

He will also “play an important role in helping American families recover from the inflation unleashed by the Biden administration” and that together they will “renew and improve” the 2017 tax cuts many are due to expire after 2025.

Hassett served as chairman of the Council of Economic Advisers during Trump’s first term.

“He will play an important role in helping American families recover from inflation unleashed by the Biden administration,” Trump said.

Kevin Hassett, Chairman of the White House Council of Economic Advisers, speaks to members of the media outside the White House in Washington, DC (Andrew Harrer/Bloomberg via Getty Images)

Businessman John Phelan will also serve as the next Navy secretary. Phelan is co-founder of MSD Capital.

“His track record speaks for itself – a true champion of American entrepreneurship and ingenuity!” Trump said in a statement.

John Phelan, co-managing director and co-founder of MSD Capital LP. (Photographer: Peter Foley/Bloomberg via Getty Images)

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“John will be a tremendous force for our Marines and a steadfast leader in advancing my America First vision,” Trump said. “He will put the business of the U.S. Navy above all else.”

The Associated Press contributed to this report.