Should Donald Trump win the presidential election in November, what might he do? Will he halve the US defence budget, thereby threatening allies, like Australia, that rely on the United States for protection? Or perhaps, as Trump once asked his most senior defence staff, he should “bomb the hell out of Iran?”This last anecdote is one that Chris Miller, the one-time defence secretary during the Trump administration, relayed to international and political editor Peter Hartcher, in an interview earlier this week.Today, Peter Hartcher, currently on the ground in Washington DC, on what insights Chris Miller gave him about how Donald Trump might go about trying to achieve his goals, during a second term as president.Subscribe to The Age & SMH: https://subscribe.smh.com.au/See omnystudio.com/listener for privacy information.