The campaign's on and we're taking the temperature of the electorate. Liberal powerbroker Senator Nick Minchin and Labor’s campaign spokesman, MP Chris Bowen, will try to win over a room of undecided voters when Insight returns tonight. We've recruited voters from the most marginal seats in Australia to follow the election campaign. We'll be hearing from them each week of the campaign as they give us their frank assessment - on air and online - of the leaders and their policies. We'll track them over the course of the five week campaign to see which issues are getting traction, and what sways their vote. Hear what they think of the two leaders – Prime Minister Julia Gillard and Opposition Leader Tony Abbott – and find out what might sway their votes between now and polling day on August 21.