He has found no evidence of Trump collusion with Russia because there never was such evidence.
The dossier purchased by Hillary Clinton was a mirage created by anti-Trumpers so that the corrupt Deep State could investigate and hopefully dig up enough dirt to impeach a lawfully elected president. They failed. Instead, we see a continuing and treasonous coup by the swamp forces.
The ‘Russian Collusion’ narrative will now be replaced with a new investigation. The Deep State is switching to ‘Trump obstructed justice.’ It’s another way to harass a president who isn’t on their same globalist page.