An NPR analysis published July 31, 2026, found that Republican candidates in close 2026 midterm races are making healthcare a big focus of their advertising. The ads talk about Medicaid fraud, saving rural hospitals, and making healthcare more affordable. This is happening even though the Republican Party's own major law, the One Big Beautiful Bill Act, is expected to reduce the number of people with health insurance by millions.

NPR looked at YouTube video ads for candidates in races rated as toss-ups or leaning one way by the Cook Political Report, a group that analyzes elections. Many of the Republican healthcare ads were aimed at voters over 35. That age group tends to vote at higher rates and has long listed healthcare as one of their top concerns. The ads focused on three topics: Medicaid fraud, rural hospitals, and affordability.

Rep. David Valadao (R-Calif.), running in a competitive Central Valley district, ran an ad about healthcare affordability challenges. Rep. Mike Lawler (R-N.Y.), facing reelection in a toss-up seat, ran ads about reforming Medicaid. One Lawler ad falsely said that undocumented immigrants can no longer receive benefits under the program. But federal law already bars most undocumented immigrants from getting Medicaid, except for emergency services. That rule existed before the One Big Beautiful Bill Act.

The ad campaign comes just over a year after President Donald Trump signed the One Big Beautiful Bill Act into law on July 4, 2025. The bill was introduced as H.R. 1 on May 20, 2025, and passed by the U.S. House on May 22, 2025. It went through a process called budget reconciliation, which lets certain spending and tax bills pass the Senate with a simple majority instead of the usual 60 votes. The law was assigned Public Law number 119-21. The U.S. Senate made changes to H.R. 1 before final passage. The Congressional Research Service published a report on the law's health coverage provisions (report number R48569) on June 13, 2025.

The One Big Beautiful Bill Act made insurance requirements stricter and reduced funding for state health programs. According to the Academy of Managed Care Pharmacy, the law includes over $1 trillion in cuts to Medicaid, the government health insurance program mainly for low-income Americans. The Congressional Budget Office, a nonpartisan agency that estimates the cost and effects of laws, projected that about 10 million fewer people would have health insurance in 2034 because of the law. Early data from the Centers for Medicare & Medicaid Services shows that about 3 million fewer people were signed up through health insurance exchanges in early 2026 compared to when the law passed. Health insurance exchanges are online marketplaces where people can shop for coverage.

Public opinion data shows the political stakes. A KFF poll from April 2026 found only about one-third of all voters approved of how the Trump administration was handling healthcare costs. The same polling, however, showed Republicans doing better than Democrats on voter trust for "addressing fraud and waste in government health care programs." That finding lines up with the GOP ad strategy of focusing on fraud.

Jonathan Oberlander, a healthcare policy expert at the University of North Carolina, told NPR that the ACA repeal attempt was "the least popular major legislation of the past 40 years." The ACA, or Affordable Care Act, is the 2010 law also known as Obamacare. Oberlander's comment points to a pattern Republican incumbents are trying to avoid: having healthcare tied to an unpopular law become a major midterm issue.

Daniel Hopkins, a political science professor at the University of Pennsylvania, said Congressional Republicans are talking about healthcare reform early in the 2026 campaign because they expect challengers to use it against them. Ashley Kirzinger, director of survey methodology at KFF, is among the pollsters whose data both parties are using to shape their messaging on the issue.

Democrats are actively working to make the law a problem for Republicans. The Washington Post reported on July 6, 2026, that Democrats use the phrase "big, beautiful bill" far more than Republicans do as the midterms approach, turning the law's name against the party that created it. The Post noted the One Big Beautiful Bill Act was supposed to be Republicans' top legislative achievement heading into the 2026 midterms. The Hill reported on July 8, 2026, that Democrats are going after Republican senators' support for the law in competitive 2026 Senate races.

AdImpact, a firm that tracks political ads, has followed advertising targeting about a dozen key congressional seats connected to the 2026 midterms, according to WRAL. The spending shows how narrow the battlefield is, where healthcare messaging could tip the results.

The broader context here is a party trying to frame its own legislative record before opponents do it first. Republican candidates are focusing on fraud reduction and saving rural hospitals, areas where KFF data shows the party has a trust advantage with voters. They are avoiding direct engagement with CBO coverage-loss projections or declining exchange enrollment. Democrats are using the law's own name as a shorthand for coverage reductions. The gap between these two strategies, and whether voters focus on the older ACA memories Oberlander mentioned or the more recent enrollment drops, will shape races where winning margins could be just a few percentage points.