Is it me, or is this BBC article about the Steele dossier a bit odd?
Clinton team and Democrats 'bankrolled' Trump dirty dossier
www.bbc.co.uk/news/world-us-canada-41752908
"Unfounded claims that Mr Trump had been filmed with prostitutes in a Moscow hotel surfaced in the closing stretch of last year's White House race.
...
"Some of Mr Steele's allegations began circulating in Washington in the summer of 2016 as the FBI began looking into whether there were any links between Trump aides and the Kremlin.
"Special counsel Robert Mueller and several congressional panels are investigating the same alleged connections, but to date have found no evidence."
The BBC isn't in a position to say whether the claims about the prostitutes are unfounded, only that they haven't been substantiated publicly.
Similarly, it doesn't know what Mueller or any of the panels have found: it's not privy to their evidence.
(Obviously, the BBC does know there are links between Trump aides and Putin's associates, eg Manafort & Deripaska; Sessions' undeclared conversations with Kislyak, etc. So presumably it's not claiming there's no evidence for the connections in themselves.)
It's not the first time that the BBC's US desk has struck me as being a bit keen to toe the White House line. But maybe that's just my perception.