On his popular evening programme Periodismo para Todos (Journalism for All), the muckraking Argentine reporter Jorge Lanata and his guests delivered an explosive claim: United States President-elect Donald Trump asked the country's leader for help getting permits for a stalled Trump tower project in Buenos Aires.
The story spread wildly across social media yesterday, especially in the US, as it played into worries that the new US President will use the Oval Office like an advertising agency for the Trump global brand.
That Trump would use a congratulatory call from the Argentine President, Mauricio Macri, to promote his personal business interests in such a tawdry, crass way seemed to confirm the worst fears of his critics about the potential abuse of executive power.
But the Trump-favour-seeking story may end up fitting better into another narrative of post-election US politics: the easy spread of thinly sourced or even fake news.
Ivan Pavlovsky, a spokesman for Macri who was present in the room during their call, said the claims were false and that "nothing like that ever happened". "They didn't talk about any investments or any tower," said Pavlovsky, reached by phone in Buenos Aires. "They talked about good relations between Argentina and the United States and the time they first met each other, more than 20 years ago" in New York City, said Pavlovsky.