President-elect Donald Trump Donald John TrumpOmar fires back at Trump over rally remarks: 'This is my country' Pelosi: Trump hurrying to fill SCOTUS seat so he can repeal ObamaCare Trump mocks Biden appearance, mask use ahead of first debate MORE is announcing former Labor Secretary Elaine Chao as his Transportation Secretary later Tuesday, according to multiple reports.

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Chao, who ran the Labor Department under former President George W. Bush, is married to Senate Majority Leader Mitch McConnell Addison (Mitch) Mitchell McConnellPelosi: Trump hurrying to fill SCOTUS seat so he can repeal ObamaCare Senate GOP aims to confirm Trump court pick by Oct. 29: report Trump argues full Supreme Court needed to settle potential election disputes MORE (R-Ky.).

She was also a member of Trump’s Asian Pacific American Advisory Council during his presidential campaign.

Chao met Trump at Trump Tower in New York City last week to discuss labor and transportation policy, according to Politico.

A formal announcement about Chao is expected at 1 p.m. on Tuesday afternoon.

Trump transition team spokesman Jason Miller told Fox Business Network earlier Tuesday that the president-elect will make an announcement about his pick for the next Transportation Secretary on early Tuesday afternoon.

"We're excited with how the administration is coming together and we think this is gonna be a great day," Miller said. "And don't forget we also have another cabinet selection coming early afternoon today as the pres-elect continues to move forward."

When pressed on which cabinet position will be announced in the afternoon, Miller simply replied, "Transportation."

A transition official described Chao to the New York Times as a “dark-horse candidate” on Monday night.

Other names that were thought to be under consideration for the position included Rep. Lou Barletta Louis (Lou) James BarlettaBottom Line Ex-GOP congressman to lead group to protect Italian products from tariffs Head of Pennsylvania GOP resigns over alleged explicit texts MORE (R-Pa.), an early Trump supporter; and Rep. John Mica (R-Fla.), who lost reelection earlier this month.

Barletta, a member of the House Transportation Committee, is expected to meet with Trump on Tuesday.

Mica told reporters earlier this month that he spoke with Trump confidantes about joining the administration.

Trump has long discussed the need to repair the nation’s crumbling infrastructure, which would become a key focus for his Transportation secretary.

He has floated a $1 trillion package that would offer tax credits to private investors who want to back transportation projects.

Trump says such a policy would spur investment, create jobs and boost the economy.

The president-elect said last week, though, that infrastructure will not be a “core” part of his agenda during the early years of his administration.

- Nikita Vladimirov contributed.

- Updated at 11:22 a.m.