As the 2026 midterms approach, health care costs remain voters’ top health priority, but fraud in government health programs, including Medicaid and Medicare, is resonating with Republican voters, 55% of whom say it’s extremely important for candidates to address. Most voters say there is at least “some” fraud in government health programs, but larger shares say there is fraud in the tax system, defense, and foreign aid, while the smallest share sees fraud in the ACA Marketplaces.

Health care costs continue to top the public’s list of affordability worries, even as concerns about gas prices have risen in recent weeks.

This poll looks at exposure to and belief in several vaccine myths and finds that people without a trusted health care provider, and those who regularly use social media or AI for health information, are generally more likely than others to belief the false claims. It also analyzes belief across vaccine myths, showing the share of the public that are consistent myth believers, consistent myth deniers, and those who land in the “mixed middle.”

Drawing on KFF’s poll findings, this interactive dashboard tracks the public’s trusted sources for health information, attitudes toward vaccines, and use of news, social media, and AI for health-related information.

Our signature survey project provides up-to-date data on the public’s health care views, knowledge, and experiences.

This interactive tool tracks public opinion on the Affordable Care Act, from the inception of the law to the present, including trends based on party identification, income, age, gender, and race/ethnicity.

This chapter of our digital “textbook” explores why surveys are essential for understanding health policy issues.