For almost 20 months, Australia operated without a US Ambassador in Canberra.
During this period, the alliance has continued to deepen across defence, critical minerals, supply chains and Indo-Pacific security. At the same time, it has navigated several challenges, including a 12.5% tariff on Australian goods, pressure to lift Australia’s defence spending, uncertainty around the delivery of AUKUS, and Most Favoured Nation drug pricing.
Since the departure of former US Ambassador Caroline Kennedy in November 2024, the US has been represented in Canberra by Chargée d’Affaires Erika Olson, and Australia in Washington by both former Ambassador the Hon Kevin Rudd AC and, currently, His Excellency Greg Moriarty AO.
During this intervening period, Australian stakeholders broadened the ways they reached into Washington, including through Congress, agencies and industry. However, with decision-making concentrated in a highly centralised White House, high-level channels, particularly between leaders and ministers, have remained vital to managing the relationship.
The confirmation of close Trump ally David Brat as US Ambassador to Australia on 7 August 2026 marks a new chapter in the relationship, restoring a direct line to the White House in Canberra.
Join Nexus APAC as we discuss the new US Ambassador to Australia the the implications of his appointment for Australian stakeholders.
Who is David Brat?
Mr Brat is a former Republican Congressman from Virginia who achieved one of the most stunning upsets in modern US politics, defeating House Majority Leader Eric Cantor in a 2014 primary despite being outspent by more than 25 to 1. The result made Cantor the first sitting House Majority Leader to lose a primary since the position was created in 1899, and is widely seen as an early sign of the anti-establishment, populist wave that would later reshape the Republican Party. Mr Brat went on to serve two terms in Congress (2014–2018).
An economist by training, Mr Brat has been closely associated with conservative Republican politics and has publicly supported President Trump’s economic and political agenda. Previously a longtime free-market economist, he has more recently backed Mr Trump’s tariffs, arguing that free trade is no longer workable because US companies have “sold out” America. Prior to this appointment, his first diplomatic role, Mr Brat has held the role of Senior VP Business Relations at Liberty University.
Mr Brat is a longtime Trump ally, having backed the President since his first presidential run. Known as personable and pragmatic, he is seen as someone who can stand firm on substance while keeping negotiations constructive. He is also a self-declared tennis fanatic, opening the door to some sports diplomacy with the Prime Minister, himself a keen player.
Priority Areas
On confirmation, Mr Brat identified his priorities as defence cooperation, partnership in the Indo-Pacific, commercial diplomacy and critical minerals. In particular, Mr Brat discussed progressing AUKUS, advancing superannuation fund investment in the US, and creating a “level playing field” for US exports, building on the opening of the Australian market to US beef.
Critical minerals are clearly an early priority. Mr Brat’s appointment coincided with a $US400 million conditional loan from the Pentagon’s Office of Strategic Capital to Sunrise Energy Metals’ Syerston scandium project in central-west NSW, part of a broader $US3 billion investment package in critical minerals supply.
A Changing Dynamic
Mr Brat’s arrival changes the shape of the relationship in Canberra. For nearly two years, the top US post was in caretaker mode, ably managed but without the authority, mandate or presidential access of a confirmed ambassador. Substantive decisions, on tariffs, AUKUS and critical minerals, were reached largely through leaders, ministers and Australia’s own embassy in Washington.
Mr Brat’s appointment restores a single, high-authority US representative in Canberra, and, given his standing with the President, a more direct line back to the White House than the relationship has had in some time. As a trusted Trump ally who understands how the administration thinks, Mr Brat is well placed to translate Australian priorities to a highly centralised White House, and to convey Washington’s thinking back to Canberra.
The question for Australian organisations is whether his office becomes the primary channel into the administration, or one important node among the many that stakeholders have built over the past two years. Either way, maintaining these networks remains strategically important, given the unpredictability of the current relationship and the need to think beyond Trump’s second term.
What to Watch
For Australian stakeholders, several things are worth monitoring in the months ahead:
- Access patterns: whether Mr Brat builds on existing relationships and networks, or positions his office as the primary point of entry to the administration.
- State and business engagement: how far he reaches beyond Canberra to industry associations, state governments and commercial partners.
- Sector priorities: which industries he engages first, particularly critical minerals, defence and advanced manufacturing.
- Critical minerals momentum: whether more Australian projects attract US government-backed financing under the Australia-US Critical Minerals Framework.
- Tariffs: whether Mr Brat’s appointment facilitates progress towards the easing of current tariffs.
- Defence: how actively he engages on submarine timelines and Australia’s defence spending.
Photo Credit: Conservative Review/Gage Skidmore
