Nationals leader David Littleproud has announced he is stepping down in a surprise decision, saying he's “buggered”.
Mr Littleproud announced on Tuesday he would resign as party leader, but would remain in parliament.
“I’m buggered and I’ve had enough,” he told reporters in Canberra.
“I’ve got to a juncture where I believe it is time.”
He first entered parliament in 2016 as the MP for Maranoa in Queensland, one of the safest seats in the country.
He was elected leader of the Nationals in 2022 after the coalition’s election defeat.
Mr Littleproud attracted controversy after he announced he would not renew the coalition agreement with the Liberals over policy, before reuniting.
A second split took place in January under his leadership following a dispute over hate speech laws, before the parties got back together.