The nation is watching the tight race between Democrat Theresa Greenfield and incumbent Republican Joni Ernst for one of Iowa’s U.S. Senate seats.

A six-second ad paid for by the Democratic Senatorial Campaign Committee claims, “Joni Ernst gave trillions in tax breaks to corporate special interests. She’s not on our side.”

The text with the ad on Facebook, which shared it Sept. 16 as sponsored content, goes on to claim that Ernst “wants to pay for it by cutting our Medicare.”

The Fact Checker team checks statements made by an Iowa political candidate/officeholder or a national candidate/officeholder about Iowa, or in ads that appear in our market.

Claims must be independently verifiable.

We give statements grades from A to F based on accuracy and context.

If you spot a claim you think needs checking, email us at factchecker@thegazette.com.

This Fact Checker episode was hosted by The Gazette's Marissa Payne and co-hosted by Erin Jordan, Michaela Ramm, and John Steppe.