Democratic voters in Lake Worth, Florida listen to Republican candidate Mitt Romney during the first televised presidential debate, between Romney and President Obama. Romney was credited with winning on style, if not on substance. Three further debates are scheduled, including one with vice-presidential candidates. Florida is a key swing state and it's electoral votes could be crucial in determining who is the president, as in 2000. The US presidential election will be held on 6 November, 2012.