And here's Bridget McKenzie

It's no surprise to hear the deputy Nationals leader say there's been "no fiercer advocate" for rural and regional Australia than Barnaby Joyce.

"As the acting leader of the Nationals, I would like to thank Barnaby Joyce for his contribution not only to our nation and to our Parliament, but particularly to the Nationals. His legacy is significant. "

She says he made the right decision for the party in standing down from the leadership.

In case you were wondering, no, Bridget McKenzie won't be running for the leadership herself. She says she'd rather focus on her role in the Senate. She adds that as acting party leader, it would be inappropriate to publicly back any horse in this race.

She's also confirmed she spoke to PM Malcolm Turnbull shortly after Barnaby Joyce made his announcement.