Nationals Senate leader Barnaby Joyce says the Labor leadership battle is the "biggest domestic on the street".
Speaking after arriving in Canberra on Sunday ahead of the Labor leadership caucus vote at parliament house on Monday, Senator Joyce said the skirmish between Labor ministers and MPs was unedifying.
"The Labor leadership crisis is like the biggest domestic in the street," Senator Joyce told reporters.
"You have people yelling and screaming at each other.
"They are throwing everything around and they will be in the frontyard tomorrow saying that everything will be better and they will get on fine.