The IG report will come out right after the new investigator Sessions appointed gets done investigating if there should be an investigation, and after he makes his report to Sessions, who will then return briefly from an undisclosed location at a tropical resort and make a finding about whether or not to investigate.
This should be concluded shortly after the impeachment proceeding conclude and after the voting is done to Impeach, Remove, and Convict by the new Democrat House and Senate. So figure by Feb 2019 or whenever Pelosi assumes the Presidency.
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Not that far from reality...
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