US Senator John McCain has urged Australia to stick with the United States, addressing a USSC event in Sydney. The Vietnam War veteran and former presidential candidate is chairman of the powerful Senate Armed Services Committee. He insists Australia can still count on America, despite the United States going through what he describes as 'a rough period', acknowledging that President Donald Trump's actions and statements 'have unsettled America's friends'. He has encouraged Australia to join with allies to engage in freedom of navigation exercises in the South China Sea as a 'counterweight' to China's 'misbehaviour'. ABC Radio's AM reports on McCain's speech.