The banners, flags and T-shirts – Women for Obama, Hispanics for Obama, LBTG for Obama – plaster Democratic campaign offices in the hard fought swing state of Florida, just as in 2008. What's missing this time is the people. Four years ago Barack Obama's campaign was flooded by volunteers – the young in particular – excited by his vision of remaking America, and by the prospect of putting an African American in the White House. Now active support in Florida is visibly more sparse, and it may prove decisive as Democrats struggle to claw back the state from Mitt Romney.