Key points:
- Ballots to be cast at more than 7,000 polling places around Australia
- Opinion polls predict tight race between Coalition and Labor
- Mathias Cormann says Government taking "nothing for granted"
Australians will flock to more than 7,000 booths — but about 2.5 million people have already cast their ballots in pre-poll voting.
Both major party leaders started their days in Sydney, with Prime Minister Malcolm Turnbull casting his vote at the Double Bay Public School in his seat of Wentworth.
