Hillary Clinton Hillary Diane Rodham ClintonJeff Flake: Republicans 'should hold the same position' on SCOTUS vacancy as 2016 Momentum growing among Republicans for Supreme Court vote before Election Day Warning signs flash for Lindsey Graham in South Carolina MORE's campaign is rolling out a video touting her work on children's healthcare as part of a multi-million dollar general election ad blitz that targets swing states.

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In the clip, which begins airing Saturday, Amanda Strine talks about her daughter Kayla's childhood struggle with two chronic illnesses.

"It was heartbreaking to watch her go through this. My husband and I both work, but the medicine she needed cost thousands," Strine said.

"When Hillary Clinton was first lady, she was instrumental in passing the Children's Health Insurance Program, and because she did, Kayla and millions of other kids have coverage," Strine said.

"That's what Hillary Clinton did, and that tells you a lot about the kind of president she'll be."

The ad is part of a eight-figure ad buy in eight swing states, Clinton's first of the general election, as she pushes her central argument that rival Donald Trump Donald John TrumpUS reimposes UN sanctions on Iran amid increasing tensions Jeff Flake: Republicans 'should hold the same position' on SCOTUS vacancy as 2016 Trump supporters chant 'Fill that seat' at North Carolina rally MORE is unfit for the presidency.

The campaign has purchased advertising time in Florida, Virginia, North Carolina, Iowa, New Hampshire, Ohio, Colorado and Nevada.

Trump, the presumptive Republican nominee, hasn't yet aired a general election ad, though he has begun sending out fundraising emails.

In a fundraising email to supporters sent last weekend, the Trump campaign asked for funds to combat the Clinton campaign's ad blitz.

"Crooked Hillary is about to invade your TV with ads attacking Mr. Trump. But we're preparing to fight back," the email read. "Right now we're facing an emergency goal of $100,000 to help get our ads on the air."