Would America be better off...

[True Federalist (진정한 연방 주의자)]

There was a chance in the 1910's/1920's that the US could have developed a viable three party system with the Progressive Party being a national party, the Democrats in the South, and the Republicans elsewhere.  The failure of the Progressives to establish a viable Southern wing kept that from happening.  It would have given the US a situation similar to Australia's current three party system.  Could a three-party situation happen in the US?  The necessary groundwork is being laid with two ideological parties with strong regional support already in existence, but the problem is where is the wedge issue that neither party would be willing to embrace or at least hold hands with in the quest for votes that would be necessary for a strong third party to form?