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US Midterm Shake-Up Raises New Questions Over Australia's AUKUS Deal

Democrats' takeover of Congress creates new political uncertainty for Australia's AUKUS submarine program, which depends on US funding and shipbuilding capacity.

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United States President Donald Trump greets the Prime Minister of Australia Anthony Norman Albanese, Oct 20, 2025 - Anadolu Images -
7 Nov 2026 · 02:31 GMT · 1 MIN READ
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Australia's multibillion-dollar AUKUS nuclear submarine program faces a changing political landscape in Washington after Democrats secured control of the US Congress in the November midterm elections.

The election results give Democrats greater influence over congressional oversight and federal spending, potentially affecting debates surrounding US submarine production and defense industrial investment.

Under the AUKUS agreement, Australia plans to acquire nuclear-powered submarines from the United States before eventually operating a new class of submarines developed with Britain.

The program depends partly on expanding American shipbuilding capacity, which has faced production delays and workforce constraints.

Former Australian ambassador to Washington Arthur Sinodinos has urged Canberra to maintain relationships with both major US political parties and prepare for political changes beyond the 2028 presidential election.

However, there has been no announcement that the incoming Congress intends to cancel or suspend the submarine agreement.

The political shift comes days after an Australian public inquiry led by former defense chief Chris Barrie and former lawmaker Peter Garrett called for the AUKUS submarine program to be abandoned.

The Albanese government rejected the inquiry's conclusions, maintaining that AUKUS remains central to Australia's national security strategy.

Meanwhile, the three AUKUS partners announced on October 27 that the US nuclear-powered attack submarine USS Colorado would become the first vessel assigned to Submarine Rotational Force-West in Western Australia in late 2027.

The rotational force is expected to operate from HMAS Stirling and eventually accommodate up to four American and one British nuclear-powered attack submarines.

The latest developments highlight the importance of congressional support and American industrial capacity to the long-term implementation of the agreement.

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