Accusations of collusion with Russia have been prevalent ever since President Donald Trump’s 2016 election; however there has never been proven evidence, nor much that has connected Trump personally to any wrongdoing. But, on Thursday night, when  Buzzfeed News reporters Jason Leopold and Anthony Cormier published an article detailing Trump’s alleged business involvements with Russian officials, that all seemed like it might be changing.

The article, specifically pertaining to efforts to build a Trump Tower in Moscow, used information provided by two alleged federal law enforcement officers, as well as “multiple witnesses from the Trump Organization and internal company emails, text messages, and a cache of other documents,” claiming that Trump directed his former attorney Michael Cohen to lie to Congress about negotiations surrounding the proposed tower. And despite Trump’s previous assertions that he has no business deals with Russia, Buzzfeed’s sources claimed otherwise, saying that both Trump and two of his children, Ivanka and Donald J. Trump, received “regular, detailed updates about the real estate development from Cohen, whom they put in charge of the project.”

However, less than 24 hours after the article was published, its claims seemed to be refuted, with special councilman Robert Mueller, the head behind the investigation into Russian involvement in the 2016 election, issuing a statement against the story. The move to dispute these claims was a surprising one, as many viewed the article as a major advancement in Mueller’s investigation. In fact, Mueller’s statement discredited the story as a whole, describing its evidence “not accurate,” and dismissing explosive discussions of Trump’s impeachment that circulated after the story’s publication. However, as many questions arise regarding the legitimacy of the article and its sources, Buzzfeed continues to stand behind their story.