The claim
The claim is that the American left is not a movement but a payroll, and that one man signs the cheques. In its ordinary form it holds that protests, immigration, prosecutors, journalists and election administration are funded by George Soros through the Open Society Foundations, and that what looks like politics is therefore purchased. In its harder form Soros is one of a small group — the Rothschilds and the Illuminati are the usual company — running a plan against national sovereignty.
The first version is a claim about money that can be checked, because the money is published. The second is not a claim about money at all.
What the foundations publish
Soros began giving in 1979, with scholarships for Black South Africans at the University of Cape Town under apartheid, and set up his first Hungarian foundation five years later. The Open Society Foundations say he has given them more than $32 billion since 1984, including a transfer of $18 billion announced in 2017. Their own financial page reports expenditures of $24.2 billion over three decades and $1.2 billion in 2024 alone.
Those are the foundation's figures, offered by the foundation. They are also the reason the claim is unusually easy to test one grant at a time: a network that publishes its grantees cannot hide a grantee, and the specific allegations — that a given protest, prosecutor or caravan was paid for — are therefore answerable in a way most conspiracy claims are not.
What the published record shows is a very large philanthropy operating in the open on exactly the causes it says it funds. What it does not show is the mechanism the claim requires, in which grants to civil-society organisations constitute control of the people those organisations later touch.
How Soros became the name
The choice of Soros as an emblem was, in at least one country, a deliberate piece of political work, and one of the people who did it has described doing it. The consultants Arthur Finkelstein and George Birnbaum, who began advising Viktor Orbán in 2008, settled on Soros as the enemy figure. Birnbaum gave the account himself, to the Swiss magazine Das Magazin and to Hannes Grassegger of BuzzFeed News in January 2019: Finkelstein, he recalled, proposed Soros as the scapegoat, and enough Hungarians disliked the idea of a billionaire behind the curtain for it to work. Orbán had himself received Soros money as a young liberal politician in the 1980s.
The campaign that followed was not subtle and was not hidden. The Hungarian government ran a national billboard and poster campaign against Soros, and in May 2018 brought forward a package of restrictions on non-governmental organisations that it called "Stop Soros", which would have required a government licence for any organisation advising or representing asylum seekers. The Open Society Foundations announced on 15 May 2018 that they were closing their Budapest office and moving international operations and staff to Berlin, citing what they called an increasingly repressive political and legal environment.
That sequence matters for reading the rest. The figure at the centre of the theory was picked, named and campaigned against as a matter of record, by a government, with consultants who have said so.
The caravan, and what followed
In October 2018 the claim arrived in the United States in a specific form: that Soros was funding the migrant caravans then moving north through Central America. The theory that Soros was behind Central American migration had been circulating since late March of that year. It was repeated by elected officials, including the president, and by enough others that a soup company publicly disavowed a version of it posted by one of its executives. The Open Society Foundations issued a statement on 18 October 2018 saying that neither Soros nor the foundations were funding the effort, and contemporaneous checks at NBC News and PolitiFact found no organisation — of any politics — that had financed the caravan's creation.
Within weeks two men who had repeated the claim on social media acted. Cesar Sayoc mailed sixteen improvised explosive devices to prominent critics of the president; the first was found in the mailbox at Soros's home outside New York City. Sayoc pleaded guilty to a sixty-five-count superseding information and was sentenced in August 2019, in federal court in Manhattan, to twenty years in prison. Days after the packages were found, Robert Bowers killed eleven people at the Tree of Life synagogue in Pittsburgh. Both men had posted about Soros beforehand.
Neither crime is evidence about the funding claim. They are evidence about what the claim does when it travels, and they are the reason the Anti-Defamation League treats this particular theory as a case study in lethal consequence rather than as an ordinary political argument.
The prosecutors
A later and narrower version holds that Soros buys district attorneys. After the Manhattan district attorney Alvin Bragg indicted Donald Trump in 2023, several members of Congress described him as bought and paid for, and the phrase "Soros D.A." entered general use.
The documented connection is a chain of two links: Soros donated to the advocacy organisation Color of Change, and Color of Change contributed to Bragg's campaign. Soros was one of many donors to the organisation and has never met Bragg. Nothing in the record connects him to a charging decision. Whether a donor two steps removed exerts influence is a question about campaign finance generally, and it is not what the claim asserts.
The biography
Running alongside all of it is a claim about Soros's childhood: that a Jewish man who survived the German occupation of Hungary was a Nazi collaborator. Soros was born in Hungary in 1930 and was thirteen when the occupation began in 1944. The claim is built on a 1998 60 Minutes interview in which he described surviving it, and it has been repeated by broadcasters, commentators and members of Congress — by Representative Louie Gohmert on the House floor in December 2018, among others. Contemporaneous profiles at CNN and CBC News set the claim against what he actually described, and the characterisation is unsupported by it.
Scholars who have studied the theory as a whole — Armin Langer and Ivan Kalmar among them — read this strand as the oldest part of the structure rather than a separate error: a Jewish financier cast as the hidden hand behind events, which is a shape that long predates Soros and has been fitted to other names before his.
Why it does not settle
The theory is unusually well supplied with falsifiable sub-claims and unusually resistant to any of them being falsified, and the two facts are connected.
Because the Open Society Foundations publish their grants, each specific allegation can be checked and most do not survive. But the general claim does not rest on any particular grant; it reads every grant as the same proof. A foundation that funds voting-rights litigation is funding election fraud; a foundation that funds criminal-justice reform is funding crime; a foundation that funds refugee legal aid is funding invasion. On that reading the published record is not a test of the theory but its evidence base, and the transparency that ought to resolve the question instead feeds it.
The pattern recurs. After the killing of George Floyd in 2020, an analysis by Zignal Labs found unsubstantiated claims about Soros's involvement to be one of the three narratives spreading most widely about the protests, and the Anti-Defamation League counted negative mentions of him on Twitter rising from roughly 20,000 to roughly 500,000 a day inside four days. In early 2025 pro-government media in Serbia attributed student protests there to Soros and USAID. In August 2025 the president said Soros should be prosecuted under racketeering law for funding violent protests, and reporting indicated the Justice Department had directed staff to look at it.
No stage of that sequence turns on a document. It turns on the claim being available, which it now permanently is: a name that can be attached to any crowd, in any country, without the attacher having to say which grant he means.