"He's dangerous for the US and dangerous for the global community, and you just need to look at those clashes that we have seen recently between anti-Trump and pro-Trump supporters, huge division in the US at the moment." Republican presidential candidate Donald Trump. Credit:AP Violent scuffles and some attacks have become common at Mr Trump's campaign events in recent months, and security is expected to be tight at next month's Republican convention in Cleveland, Ohio. Mr Trump secured the required number of convention delegates to seal the nomination last month. Senator Di Natale restated his view that Australia should reconsider its strategic alliance with the United States and stop orientating its foreign policy around Washington.

"I think there's no better time . . . to redefine the terms of the US alliance," he said. Greens Leader Richard Di Natale. Credit:Alex Ellinghausen "We think it should be done . . . the fact that we are even talking about a Trump presidency scares the daylights out of most people. "I think the first thing to do is look at the Australian national interest. I think it is absolutely in our national interest to redefine the terms of our alliance and not to commit troops blindly to international conflicts in the way we have done in the past. "We are the only country that's followed the US into every international conflict since World War II, including some major strategic blunders.