TITLE: "Afford.''
LENGTH: 30 seconds.
AIRING: Pennsylvania.
SCRIPT: Announcer: "Hillary Clinton's attacking, but what's she not telling you about her health care plan? It forces everyone to buy insurance, even if you can't afford it, and you pay a penalty if you don't. Barack Obama believes that it's not that people don't want health care, it's that they can't afford it. That's why the Obama plan reduces costs more than Hillary's, saving $2,500 for the typical family. For health care we can afford, vote for change we can believe in.''
Obama: "I'm Barack Obama and I approve this message.''
KEY IMAGES: Still shots of Clinton, copy from news stories on details of her health care plan. Video of Obama meeting and talking to voters. Bullet points on how the Obama health care plan would save families more money than the Clinton plan.
THE SPIN: Obama and Clinton have tangled for months over a key difference in their health care reform plans: the so-called "individual mandate,'' which would require everyone to purchase health insurance the way most states require drivers to have auto insurance. Clinton's plan includes an individual mandate, while Obama's does not.
Obama's plan focuses on bringing down the cost of coverage so that, over time, everyone will be able to afford to buy coverage and will do so. Clinton has argued the only way to bring down the cost of insurance is to require everyone to have it.
Clinton has claimed repeatedly that Obama's plan would leave 15 million people without coverage.
ANALYSIS: Clinton has been criticized for being vague about how she would enforce the mandate she is proposing, repeatedly sidestepping direct questions about what would happen to people if they refused to buy into the program. She has said she would give broad leverage to Congressional negotiators to determine an enforcement mechanism and would allow a generous window of time for the mandate to be implemented.
Still, Obama's ad is somewhat misleading. Clinton has never said people would be "forced'' to buy coverage they can't afford. Her proposal offers tax subsidies that would help people purchase coverage, and many independent analysts believe the subsidies would reduce costs as much as Obama's plan.
The Obama campaign has also seized on a Clinton interview with ABC News in February, where she was pressed on how she would enforce the mandate. She said, "I think there are a number of mechanisms'' that are possible, including "going after people's wages, automatic enrollment.'' That led to the Obama campaign's claim that people would be subject to a penalty if they did not sign up for coverage.