A senator told Hegseth: "I suggest you do a little homework before you prepare for these types of negotiations."

Hegseth, a former Fox News personality, was taking questions from Sen. Tammy Duckworth (D-Ill.) when she challenged him to share his knowledge about even just one member of the Association of Southeast Asian Nations, or ASEAN.

Republicans appear poised to confirm Trump's controversial nominee to lead the government's largest and most complex agency

In a heated Senate confirmation hearing for Pete Hegseth, Sen. Tammy Duckworth grilled the proposed defense secretary over the Association of Southeast Asian Nations, asking him if he could name one member and how many countries were in the bloc.

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During his confirmation hearing, Trump’s Defense Secretary nominee couldn’t name a single member of the Southeast Asian bloc.

Pete Hegseth, President-elect Donald Trump’s pick for defense secretary, was questioned about ASEAN during a heated Senate confirmation and struggled with his response.

A man was carried out of Pete Hegseth's Senate confirmation hearing after cutting off Donald Trump's nominee for secretary of defense, screaming, "You are a misogynist!" The former Fox News anchor and Army National Guard combat veteran testified in front of the Senate in an explosive hearing that rehashed some of the foul allegations of sexual assault and excessive drinking that loomed over his appointment to the role.

Democratic Senator Tammy Duckworth, born in Bangkok to a Thai mother and an American father, posed the question to Pete Hegseth.

Pete Hegseth, President-elect Donald Trump’s pick for defense secretary, has publicly faced senators for the first time.

Senators argued that Pete Hegseth does not have the management experience to lead the military's 3.4 million service members and civilians.

Hegseth responded at the heated Senate confirmation hearing that he couldn’t tell Duckworth the exact number of ASEAN nations, but that “I know we have allies in South Korea and Japan in AUKUS (a pact between Australia, the United Kingdom and the U.S.) with Australia.”