Liberal candidate for Warringah Katherine Deves has spoken out about dirty tactics on the campaign trail.

Ms Deves appeared on Ben Fordham Live while Zali Steggall failed to respond to an invitation for the on-air debate.

The Liberal candidate told Ben Fordham she was joined by former prime minister John Howard on the campaign trail yesterday when they were swarmed by Zali Steggall supporters.

“Within moments of sitting down for a cup of tea … Zali supporters swarmed the cafe and then they continued to follow us down the corso.

“Basically making a nuisance of themselves.”

Press PLAY below to hear the full interview