Since 2005, Robert F. Kennedy Jr. has promoted vaccine misinformationMultiple sources:

and public-health conspiracy theories,Multiple sources:

including the chemtrail conspiracy theory, HIV/AIDS denialism, and the scientifically disproved claim of a causal link between vaccines and autism. He has drawn criticism for fueling vaccine hesitancy amid a social climate that gave rise to the deadly measles outbreaks in Samoa and Tonga. Kennedy is the founder and former chairman of Children's Health Defense, an anti-vaccine advocacy group and proponent of COVID-19 vaccine misinformation.

Political views

Kennedy's political rhetoric often invokes conspiracy theories.

Economic inequality Kennedy has argued that poor communities shoulder a disproportionate burden of environmental pollution. Speaking at the 2016 South by Southwest environment conference, he said, "Polluters always choose the soft target of poverty", noting that Chicago's South Side has the highest concentration of toxic waste dumps in the U.S., and added that 80% of "uncontrolled toxic waste dumps" are in black neighborhoods, with the largest site in Emelle, Alabama, which is 90% black.

Kennedy has said that "systematic" erosion of the middle class is taking place, remarking in a 2023 interview with UnHerd that American politicians have "been systematically hollowing out the American middle class and printing money to make billionaires richer". He said that the financial industry and the military–industrial complex are funded at the expense of the American middle class; that the U.S. government is dominated by corporate power; the Environmental Protection Agency is run by the "oil industry, the coal industry, and the pesticide industry"; and that the Food and Drug Administration is dominated by "Big Pharma". Kennedy sees a "vibrant middle class" as the economy's backbone and has said that the economy has deteriorated because the middle class has become poorer.

In an interview with Andrew Serwer, Kennedy said that the gap between rich and poor in the U.S. had become too great and that "the very wealthy people should pay more taxes and corporations". He also expressed support for Massachusetts senator Elizabeth Warren's wealth tax plan, which would impose an annual tax of 2% on every dollar of a household's net worth over $50 million and 6% on every dollar of net worth over $1 billion.

Foreign affairs and military intervention Kennedy is critical of the United States' alliances with dictatorships like Saudi Arabia. He criticized the Saudi-led intervention in the Yemeni civil war, calling it a "genocide against the Iranian-backed Houthi tribe". Kennedy is a supporter of Israel. In December 2023, he had a heated exchange with Breaking Points host Krystal Ball, in what Rabbi Shmuley Boteach called "the single greatest defense of Israel on videos since the start of the" Gaza war. In a March 2025 HHS news release, he referred to student protests against Israel's actions in Gaza as "anti-semitism" and the product of "woke cancel culture".

An opponent of the military industry and foreign interventions, Kennedy was critical of the Iraq War as well as American support for Ukraine against Russia's invasion of the country. He condemned the Russian invasion of Ukraine, but called the Russo-Ukrainian War "a U.S. war against Russia" and said the war's goal was to "sacrifice the flower of Ukrainian youth in an abattoir of death and destruction for the geopolitical ambition of the neocons". He called for a peace agreement in Ukraine based on the Minsk Accords; in his view, the Donbas region should remain in Ukraine but also be given territorial autonomy and placed under the jurisdiction of United Nations peacekeeping forces, while Aegis missile systems should be removed from Eastern Europe.

Kennedy said Ukraine should be forbidden from joining NATO, and announced that as president he would consider admitting Russia to NATO and deescalating tensions with China. He said the 2014 Ukrainian revolution was an attempted coup sponsored by the U.S. against the Ukrainian government, and that the Ukrainian government committed atrocities against the Russian population in Donbas, wrongly claiming that all casualties of the Donbas War between 2014 and 2022 (about 14,000) were Russians. He said that Russians living there "were being systematically killed by the Ukrainian government".

Kennedy denounced the operations of former CIA director Allen Dulles, condemning U.S.-backed coups and interventions such as the 1953 Iranian coup d'état as "bloodthirsty", and blamed U.S. interventions in countries such as Syria and Iran for the rise of terrorist organizations such as ISIS and creating anti-American sentiment in the region. Kennedy said the CIA has no accountability and declared his intention to restructure the agency.

Kennedy's disapproval of U.S. intervention in foreign governments was expressed in a 1974 Atlantic Monthly article titled "Poor Chile", discussing the overthrow of Chilean president Salvador Allende.Kennedy, Robert F. Jr. (February 1974). "Poor Chile". Atlantic Monthly. He also wrote editorials against the execution of Pakistani president Zulfikar Ali Bhutto by General Muhammad Zia-ul-Haq.Kennedy Jr. Robert F. (February 25, 1979). "Plea to Pakistan". The Washington Post.Kennedy, Robert F. Jr. (February 23, 1979). "Legacy at Stake in Pakistan". The Boston Globe. In 1975, he published an article in The Wall Street Journal criticizing assassination as a foreign policy tool.Kennedy, Robert F. Jr. (December 16, 1975) "Politics and Assassinations". The Wall Street Journal In 2005, he wrote an article for the Los Angeles Times decrying President Bush's use of torture as anti-American.Kennedy, Robert F. Jr. (December 17, 2005). "America's anti-torture tradition". Los Angeles Times. His uncle Senator Ted Kennedy entered the article into the Congressional Record.Congressional Record Index. (Vol 151 – Part 23). January 4, 2005 – December 30, 2005. by Senator Edward M. Kennedy, p. 2054.

In an article titled "Why the Arabs Don't Want Us in Syria" published in Politico in February 2016, Kennedy referred to the "bloody history that modern interventionists like George W. Bush, Ted Cruz, and Marco Rubio miss when they recite their narcissistic trope that Mideast nationalists 'hate us for our freedoms.' For the most part they don't; instead they hate us for the way we betrayed those freedoms—our own ideals—within their borders." Kennedy blames the Syrian war on a pipeline dispute. He cites apparent WikiLeaks disclosures alleging that the CIA led military and intelligence planners to foment a Sunni uprising against Syria's president, Bashar al-Assad, following his rejection of a proposed Qatar-Turkey pipeline through Syria in 2009, well before the Arab Spring.Kennedy, Robert F. Jr. (February 25, 2016). "Syria: Another Pipeline War". EcoWatch.

In a June 2023 interview, Kennedy said that in broad terms, he believes that U.S. foreign relations should involve significantly reducing the military presence in other nations. He specifically said the country must "start unraveling the Empire" by closing U.S. bases in different locations worldwide.

Kennedy believes that the administration of President Joe Biden, in large part, caused the 2022 invasion of Ukraine by Russia due to reckless and militant action; he has specifically cited the issue of NATO expansion into Eastern Europe. At the same time, he has clarified that he refuses to connect this criticism with anything considered support of the government of Russia under Putin, particularly given Kennedy's ethical opposition to the regime's beliefs and politics. He has called Putin a "monster", a "thug", and a "gangster". He also criticized the Trump and Biden administrations' "provocative policies" in regard to U.S. relations with China, saying that "China does not want a hot war" and calling for a reduction in tensions.

Environmental policy Kennedy promotes populist and anti-establishment environmental policies, claiming that "Bill Gates and the World Economic Forum and the billionaire boys' club in Davos" have hijacked the climate crisis. In a 2015 interview, Kennedy said of politicians skeptical of global warming that he "wished there were a law you could punish them under". He has said that environmentalists' priority should be to tackle the "carbon industry". He has called the current society and economy unsustainable and largely based on a "longtime deadly addiction to coal and oil" and contended that the economic system rewards pollution. In 2020, Kennedy said: "Right now, we have a market that is governed by rules that were written by the carbon incumbents to reward the dirtiest, filthiest, most poisonous, most toxic, most war-mongering fields from hell, rather than the cheap, clean, green, wholesome and patriotic fields from heaven."

Kennedy has advocated for a global transition from fossil fuels to renewable energy,Overheard with Evan Smith. (May 5, 2011). "Robert F. Kennedy, Jr. – Fossil Fuels". PBS. but has opposed hydropower from dams.Bowermaster, Jon (November 1992). "Last Run Down the Bio Bio". Town and Country."Robert F. Kennedy Jr. on the river along with numerous leaders of conservation organizations". August 2, 2004. Canadian Parks And Wilderness Society – Quebec Chapter. He has argued that switching to solar and wind energy reduces costs and greenhouse gases while improving air and water quality, citizens' health, and the number and quality of jobs.Staff writer (2015). "At Pennsylvania Coal Mine, Feds Come to Rescue after State Fails". Waterkeeper Magazine Vol. 11. Issue 1. Kennedy's fight to stop Appalachian mountaintop removal mining was the subject of the film The Last Mountain.The Last Mountain (2011) IMDb.

In one of his first environmental cases, Kennedy sued Mobil Oil for polluting the Hudson. He had been an early supporter of natural gas as a viable bridge fuel to renewables and a cleaner alternative to coal,Isensee, Laura (October 28, 2009). "Robert Kennedy Jr: solar and natural gas belong together". Reuters. but said he turned against this controversial extraction method after investigating its cost to public health, climate, and road infrastructure. As a member of Governor Andrew Cuomo's fracking commission, Kennedy helped engineer a 2013 ban on fracking in New York State.

In 2013, Kennedy assisted the Chipewyan First Nation and the Beaver Lake Cree in fighting to protect their land from tar sands production. In February 2013, while protesting the Keystone XL Pipeline Kennedy, along with his son, Conor, was arrested for blocking a thoroughfare in front of the White House during a protest.Spear, Stefanie (February 13, 2013). "Robert F. Kennedy, Jr., Bill McKibben, Michael Brune, Among Others Will Risk Arrest Today at White House to Stop Tar Sands, Keystone XL Pipeline". EcoWatch.

In August 2016, Kennedy and Waterkeepers participated in protests to block the extension of the Dakota Access pipeline across the Standing Rock Sioux Reservation's water supply.

Kennedy has maintained that the oil industry remains competitive against renewables and electric cars only due to massive direct and indirect subsidies and political interventions on the oil industry's behalf. In a June 2017 interview on EnviroNews, he said of the oil industry: "That's what their strategy is: build as many miles of pipeline as possible. And what the industry is trying to do is to increase that level of infrastructure investment so our country won't be able to walk away from it". Kennedy supported Alexandria Ocasio-Cortez's Green New Deal resolution, saying in a 2020 interview, "I think the Green New Deal and all that stuff is important. We ought to be pursuing it. My approach is more market-based than kind of top-down dictates. You know, I believe that we should use market mechanisms like carbon taxes and the elimination of subsidies."