Crossbench Senator David Leyonhjelm

It will fall to the Senate itself to censure David Leyonhjelm for using footage from Parliament in an election ad. And given its divisions, perhaps it's understandable the Liberal Democratic Senator isn't quaking yet.

On Tuesday, the usher of the black rod (who enforces Senate rules) informed Leyonhjelm that his ad -- featuring clips from the budget speeches of former treasurers Wayne Swan and Joe Hockey, and current Treasurer Scott Morrision -- would have to come down. This followed a complaint from Liberal Party director Tony Nutt.