Jim Zawacki, chairman of a metal-stamping manufacturer in Grand Rapids, Michigan, was apologetic but firm as he doled out some "straight talk" to John McCain, the Republican presidential candidate, at a town hall meeting this week.

Though Mr Zawacki has donated $1,000 (€628, £502) to the Arizona senator's campaign, he said he disagreed with Mr McCain's commitment to free trade and challenged his suggestion that Michigan's staggering 8.5 per cent unemployment rate could largely be fixed by retraining displaced workers at community colleges.