After falling out with US President Donald Trump, tech billionaire Elon Musk says he's launching a new political party.

Dubbed the 'America Party', Musk says it will aim to capture what he claims are the 80% of voters not satisfied with the left-wing Democrats or right-wing Republicans.

USSC Associate Professor David Smith spoke with Nights on Elon Musk's chances of breaking into the United States' rigid two-party political structure.