While they’re far from a household name, almost all Australians have now heard the political messages they craft.  Advance, a right-wing campaigning group, has gained enormous ground in the past few years, and played a crucial role in defeating the Voice referendum. So who are they? And what are they after next?  Today, national correspondent for The Saturday Paper Mike Seccombe, on how a mysterious, once ridiculed group has become a powerful political force.  Socials: Stay in touch with us on Twitter and Instagram Guest: National correspondent for The Saturday Paper, Mike Seccombe.