The big questions surrounding the Trump-Russia dossier

Moscow's Red Square and Kremlin towers at dusk. Photo: Ivan Sekretarev / AP

The controversial dossier on President Trump's links to Russia has resurfaced with new reports that the Clinton campaign and the DNC, as well as conservative news outlet the Washington Free Beacon, were involved in funding the research behind it.

The big picture: The dossier is reportedly playing a role in Robert Mueller's Russia investigation, but opinions on how credible and explosive it is vary widely. Trump and his supporters say it's a "fake" and the real scandal is Democratic involvement in funding it. Many of his critics embraced it immediately upon its publication by Buzzfeed News in January.