A Democratic super PAC is expected to release a new ad campaign Wednesday that targets Sen. Bernie Sanders Bernie SandersNYT editorial board remembers Ginsburg: She 'will forever have two legacies' Two GOP governors urge Republicans to hold off on Supreme Court nominee Sanders knocks McConnell: He's going against Ginsburg's 'dying wishes' MORE (I-Vt.) and the heart attack that he suffered late last year.

The ad from Democratic Majority for Israel features six Iowa voters and argues Sanders would be unable to beat President Trump Donald John TrumpBiden leads Trump by 36 points nationally among Latinos: poll Trump dismisses climate change role in fires, says Newsom needs to manage forest better Jimmy Kimmel hits Trump for rallies while hosting Emmy Awards MORE in November, The New York Times reported.

“I like Bernie, I think he has great ideas, but in Michigan, Pennsylvania, Iowa, they’re just not going to vote for a socialist,” a male voter says in the ad, according to the Times. “I just don’t think Bernie can beat Trump.”

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Another voter highlights the heart attack that Sanders, 78, suffered while on the campaign trail in Las Vegas at the beginning of October.

“I do have some concerns about Bernie Sanders’s health considering the fact that he did have a heart attack," another person says, according to the newspaper.

PAC president Mark Mellman, an opinion columnist for The Hill, told the publication that the goal of the ad is to highlight concerns that some Democratic voters have about Sanders's electability, asserting the senator was in a "uniquely bad position" to defeat Trump.

“For many months people were saying he really didn’t have much of a chance, but you have to look at the data now and say he does have a realistic chance of winning Iowa and potentially the nomination,” he said. “This is the point at which there could be room for someone else to make their case and have a better candidate emerge.”

Democratic Majority for Israel has spent nearly $700,000 on the ad buy, Politico reported, citing Advertising Analytics.

The Hill reached out to Democratic Majority for Israel for comment.