Donald Trump’s senior trade adviser said Australia is “killing” America’s aluminium market, in a possible setback to Canberra’s efforts for an exemption from a proposed 25 per cent tariff on steel and aluminium.

How might the Australian government influence the key decision-makers to achieve a longer-term exemption from tariffs?

Jane Hardy, a Non-Resident Senior Fellow at USSC and former Australian senior career diplomat and Australian Government official, spoke on the ABC's Saturday Extra about the negotiations.