Newly disclosed figures show the nation’s largest health insurance corporations funneled some $86.2 million to the U.S. Chamber of Commerce to oppose healthcare reform last year. Companies including UnitedHealth and CIGNA provided the money through their main lobbying group, America’s Health Insurance Plans. The spending exceeded the group’s entire budget from the year before and accounted for 40 percent of the Chamber’s 2009 budget. The money was used to fund ads, polling and public events to stir opposition to the healthcare overhaul. An anonymous source confirmed to Bloomberg News that the money came from insurers because federal tax laws don’t require identification of donors. In a statement, the Center for Responsive Politics said, “Perhaps this key debate would have progressed differently if the true source of the chamber’s spending had been known at the time.”