When a 49-year-old man was arrested in California on Monday, after trying to enter a Donald Trump rally with a car equipped with fake licence plates, a couple of illegal guns, and a load of ammunition, it made history.  At least according to the local sheriff, who said his staff had foiled a record-making third assassination attempt on Trump. Police believe the suspect was part of a movement that considers the American government illegitimate. Today, international and political editor, Peter Hartcher, on why the suspect would want to target the very candidate who most wants to dismantle much of the government.Subscribe to The Age & SMH: https://subscribe.smh.com.au/See omnystudio.com/listener for privacy information.