Special counsel Robert Mueller obtained court-approved warrants to search Michael Cohen's emails in July 2017.
This means Mueller was investigating Cohen much earlier than was previously known, and a little less than a year before an FBI raid on Cohen's home.
The president's former lawyer and fixer, who has pleaded guilty to an array of crimes that he's been sentenced to three years in prison over, has been cooperating with Mueller.
Special counsel Robert Mueller was investigating Michael...
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