Donald Trump has chosen Brooke Rollins, president of the America First Policy Institute, to be agriculture secretary.

“As our next Secretary of Agriculture, Brooke will spearhead the effort to protect American Farmers, who are truly the backbone of our Country,” the US president-elect said in a statement.

Trump’s nomination of Rollins marks the completion of his top cabinet picks for his incoming administration.

If confirmed by the Senate, Rollins would lead a 100,000-person agency with offices in every county in the country, whose remit includes farm and nutrition programs, forestry, home and farm lending, food safety, rural development, agricultural research, trade and more. It had a budget of $437.2bn in 2024.

The nominee’s agenda would carry implications for American diets and wallets, both urban and rural. Department of Agriculture officials and staff negotiate trade deals, guide dietary recommendations, inspect meat, fight wildfires and support rural broadband, among other activities.

“Brooke’s commitment to support the American Farmer, defense of American Food Self-Sufficiency, and the restoration of Agriculture-dependent American Small Towns is second to none,” Trump said in the statement.

In response to her nomination, Rollins wrote on X: “Thank you, Mr. President, for the opportunity to serve as the next U.S. Secretary of Agriculture. It will be the honor of my life to fight for America’s farmers and our Nation’s agricultural communities. This is big stuff for a small-town ag girl from Glen Rose, TX – truly the American Dream at its greatest.”

She added: “Who’s ready to make agriculture great again!”

The America First Policy Institute is a right-leaning thinktank whose personnel have worked closely with Trump’s campaign to help shape policy for his incoming administration. Rollins chaired the domestic policy council during Trump’s first term.

As agriculture secretary, Rollins would advise the administration on how and whether to implement clean fuel-tax credits for biofuels at a time when the sector is hoping to grow through the production of sustainable aviation fuel.

The nominee would also guide next year’s renegotiation of the US-Mexico-Canada trade deal, in the shadow of disputes over Mexico’s attempt to bar imports of genetically modified corn and Canada’s dairy import quotas.

Trump has said he again plans to institute sweeping tariffs that are likely to affect the farm sector.

He was considering offering the role to the former US senator Kelly Loeffler, a staunch ally whom he chose to co-chair his inaugural committee, CNN reported on Friday.

In a separate announcement on Saturday, Trump urged Randy Fine, a former gambling industry executive and current Florida state senator, to run in a special election to represent the state’s sixth congressional district in the House of Representatives.

Trump’s endorsement of Fine comes after he named Mike Waltz, Florida’s current sixth congressional district representative, to serve as his national security adviser.

Writing on Truth Social, Trump called Fine “an incredible voice for MAGA”.

“Should he decide to enter this Race, Randy Fine has my Complete and Total Endorsement. RUN, RANDY, RUN!” Trump added.