ANDREA Broadfoot drove hundreds of kilometres across the state yesterday in a bid to win the blue-ribbon seat of Grey from Liberal MP Rowan Ramsey.
Attention unexpectedly turned to South Australia's biggest electorate as Ms Broadfoot, the Nick Xenophon Team candidate, threatened to unseat Mr Ramsey over industry downturns in the key cities of Whyalla and Port   Augusta. 
Ms Broadfoot began the day at polling booths on the Yorke Peninsula before heading to Port Pirie, Port   Augusta, Whyalla and, finally, Port Lincoln, where she cast her own vote.
She said people had raised many issues with her that they felt had been ignored by Mr Ramsey and she was upbeat about her chances.
"We need to ensure that Grey is definitely very colourful in Canberra," she said.
But Mr Ramsey was guardedly optimistic about his chances, saying he didn't go to the polling booths to win votes but to thank his volunteers - some of whom have supported him for the past nine years as a federal member.
"It's a very good day if you can attend 15 to 18 of them and I probably achieved that today," he said.
Jobs and industry growth in the upper Spencer Gulf will remain the major issues facing the member for Grey, because of the precarious position of steelmaker Arrium.
The future of the Whyalla steel plant, which employs 3500 people, attracted national attention during the campaign, with both major parties making multimillion-dollar promises to secure its future if voted into power.
Federal Labor committed $100 million towards Arrium's future - after the State Government pledged $50 million. The Coalition followed suit, pledging $49.2 million.
The steelworks has been in voluntary administration since   April after struggling to compete with cheap foreign steel imports and following a slump in commodity prices.
It was one of a series of blows to the Iron Triangle, following the closure of the Leigh Creek coal mine and Alinta Energy's Port   Augusta power stations, totalling more than 400 jobs.
Labor candidate Scott Martin, who lives in Whyalla with his family, said he would fight for services and regional jobs and for industries such as grain, fisheries, construction, mining and steel in regional towns across the electorate.
GREY RAMSEY (LIB) MARTIN (ALP) BROADFOOT (NXT)MARGIN 13.6%