It was his JOB to be in the loop, and he was. The
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chiefs confirmed that they briefed the president on Russian interference in the election.
The dossier had no bearing on the Mueller report, much less the multiple indictments and convictions resulting from the investigation.
Otherwise we would have seen many appeals based upon your argument. Guess the lawyers don't see it.
'Hospitable'? Pease, Trump was being craven in the presence of his 'handler' is all.