The medical-grade latex gloves are officially off. The Washington Post reports that the battle over universal health care is heating up as Congress heads for vacation, with $52 million already spent on health-care related ads. Drugmakers, labor unions, Democrats, Republicans, and health-insurance companies are making large ad buys, in what may end up to be the nation's most expensive legislative battle. A handful of key battleground states have been targeted—Louisiana, Maine, Montana, and North Dakota—sites of hot 2010 Senate races and home to key Finance Committee senators. Reformists have shelled out $23 million, the largest share of the $52 million spent so far, advertising in favor of overhauling the health-care system without taking a stance on Obama's plan.