ABC News and the Adelaide Festival are teaming up to bring you the live broadcast of the 2018 SAVotes Leaders Debate.

Premier Jay Weatherill, Opposition Leader Steven Marshall and SA Best Leader Nick Xenophon will field your questions at the Adelaide Festival's Palais on Monday, March 5 — the halfway point of the campaign.

The ABC's state political reporter Nick Harmsen will host the three leaders, as they vie to be the next premier in what has become a defining election in the state's history.

The ABC will broadcast the debate live on ABC TV, the ABC's news channel, ABC Radio Adelaide and Facebook, and you can join the Twitter conversation with #SAVotes.

Audience members and questions have been selected to ensure political balance and a probing debate. It starts at 7:30pm, Monday March 5.