It's true that polls show solid majorities of the American public think the health care system needs change.
But there's a big difference between general support for health care legislation and the particulars of Obama's plan. The ad from Americans United for Change cites a Diageo Hotline Poll of June 10, 2009, saying that it showed 62 percent support for "the president's plan to reform health care." The actual question was this: "Do you support or oppose Congress and the president enacting a major overhaul of the U.S. health care system?" That question gauges whether people broadly support the president and Congress working together to change health care. (The poll was a random sample of 800 registered voters, and the Hotline is part of the nonpartisan news group National Journal.)
But the ad repeatedly cites the number in a misleading way. It makes it sound as if the 62 percent singled out the president's plan for support. It further distorts the poll by saying that same 62 percent backs a public health insurance plan, sometimes referred to as a public option. When the ad mentions the public option, a big "62%" flashes on the screen.