Americans for Prosperity is expanding its media assault on the Affordable Care Act with a new television campaign.

Already on the air with a $700,000 campaign in Ohio and Virginia, AFP is going up with ads in several more states and increasing its buy to over $1 million. The conservative group is also coming out with a full-page ad in Thursday's Washington Post reprinting a letter that union leaders sent to President Obama listing their concerns with Obamacare.

The ads are part of what AFP President Tim Phillips described to the Post as “a large, sustained effort” against Obamacare, one aimed largely at people under 35 and young women, in particular.

That’s the same demographic being targeted by Obama and his allies, who are deploying first lady Michelle Obama as part of a massive campaign to persuade the uninsured to sign up for the program.