Steele Dossier + media clippings.
All 3 live/work inside the UK/US/Austraila intel community.
So they've picked Mifsud. Too much is publicly known about Downer - who give interviews - and Halper to pretend they are Putin spies.
Until he started talking. The interviews he gave quickly contradicted the narrative, his saying Papadopoulos never mentioned Hillary emails, etc.
No, they *have* to pin all their hopes on Mifsud.
It hasn't leaked & this evidence is more tightly guarded than Fort Knox.
A perjury charge that resulted in a 14 day sentence.
There is no solid evidence against Carter Page. The guy supposedly at the center of the beating heart of all that Trump/Russia collusion, the best they had was 2nd/3rd hand stories told by anonymous sources to Steele.
I have my suspicions though about who ONE of the sources was.
The Hillary Clinton campaign decided to play a political dirty trick on the Trump campaign by hiring political operatives to invent a 'Trump/Russia collusion' narrative that would be sold to the media
Then use these contacts to BOLSTER the Steele dossier & get a FISA warrant to spy on Trump.