Conservative government backbencher Cory Bernardi is hoping Donald Trump wins next week's US presidential election.
The Liberal senator, on secondment to the United Nations in New York, said the Republican nominee was the "least bad candidate".
"Unlike most of my colleagues Down Under, I'll be cheering on a Trump victory," he wrote on Wednesday in his weekly newsletter.
"I hope there'll be something to celebrate."
Senator Bernardi said Trump was unorthodox, deeply flawed and somewhat erratic, but has tapped into a deep well of discontent in the US.
"I disagree with a number of his policy positions but there's a lot of what he is saying that I do agree with," the South Australian senator said.
"The hostility with which he has been treated by sections of the media, some political insiders and the militant left only reinforces the need for change."
Democrat candidate Hillary Clinton, on the other hand, is the poster child for everything that is wrong with the American political system, he said.
One Nation Senator Malcolm Roberts went one step further and echoed Trump's call for her to be jailed.
He said the former secretary of state was the most corrupt and unsuitable candidate to ever seek the office of US president.
"Secretary Clinton may well drag Australian troops, our own sons and daughters, into her twisted wars, all the while her attitude will smack of arrogance, smugness and contempt," he said in a statement.
