Focus: U.S. Sen. Dean Heller

Who’s paying for it: U.S. Senate candidate and Rep. Jacky Rosen’s campaign

Size of buy: The ad is backed by the Rosen campaign’s ongoing seven-figure buy

When it starts: Oct. 8

Where it’s running: The Rosen campaign declined to specify which market or markets the ad is running in

The gist: The 30-second ad, titled “One in Four,” features patients with pre-existing conditions talking about how Heller voted to advance a bill to repeal and replace the Affordable Care Act to debate after previously saying he wouldn’t. “One in four Nevadans have a pre-existing condition like I do,” says Laura Packard, a Nevada health care advocate and cancer survivor. “And Dean Heller is lying about helping us.”

The ad also highlights Heller’s votes to eliminate protections for pre-existing conditions, pointing to his vote in favor of a full ACA repeal bill in 2011 and his vote to advance the House’s repeal and replace bill to debate in 2017. (The Senate never seriously considered the latter bill; the vote in favor of advancing the House’s bill was just to move to debate on a host of other proposals senators were considering.)