Australia is one of the few countries in the world to have a compulsory voting system—and its merits have been debated since it was brought into effect in 1924.
Last week, US President Barack Obama praised mandatory voting, saying the US might be better off following Australia's example.
But as a possible double-dissolution election looms, could support for compulsory voting be waning in Australia?
Presented by Fran Kelly
Produced by Justin Bull
Guests: Senator David Leyonhjelm, Liberal Democrat, Professor Ariadne Vromen, Political Sociology at University of Sydney