With election night in sight, the Tai Tokerau seat is likely to be the main focus for many people.
Mana leader Hone Harawira has held the electorate since 2005, and the Internet-Mana Party is relying on him winning the seat tomorrow to help get them through.
If he does not, Internet Mana will not get any seats in Parliament.
In one poll, Mr Harawira's main competition, Labour's Kelvin Davis, was polling just one percentage point behind.
However, former Mana Motuhake leader and political commentator Sandra Lee said despite what might be a decreased majority, the Mana leader is likely to hold the seat.
Ms Lee believed that Maori Party leader Te Ururoa Flavell would hold his Waiariki seat, but said former co-leaders Tariana Turia (Tai Hauāuru) and Pita Sharples (Tāmaki Makaurau), would lose their seats to Labour candidates.
Voting closes tomorrow at 7pm.