Unable to stomach the "ongoing damage" caused by Deputy PM Barnaby Joyce scandalous personal life, The Western Australia branch of the Nationals announced it will not longer support him.

"It is the view of the parliamentary National party of Western Australia that Mr. Joyce's position as federal leader is no longer tenable," said WA Nationals leader Mia Davies.

"Mr Joyce's actions have caused pain for his family, but it is the ongoing damage Mr. Joyce is causing The Nationals organisation that is of greatest concern to me as WA Leader," she added, "The Nationals brand across regional Western Australia has suffered as a result of Mr. Joyce's actions and he has become a distraction at both federal and state level."

Barnaby Joyce is on leave for a week as the scandal over his extra-marital affair that left a former staffer pregnant shows no sign of waning.  But he seems determined to hang on, and belittled his party mates from WA for having no MPs in the Federal Parliament, and no coalition deal with the Liberals in the state.

"Therefore I find it surprising that a federal issue has so much momentum in the west, when people in the east in the National party have, in the majority, a different view, and, to be quite frank, vastly more skin in the game," said Barnaby.

Although other Nats have privately suggested that the most Joyce can hope for is to shift to the backbench, no challenger to his leadership has emerged in the party room.