Hillary Clinton’s campaign lawyer Michael Sussmann was acquitted Tuesday of lying to the FBI, in the first trial of special counsel John Durham's investigation.

The verdict is a major defeat for Durham and his Justice Department prosecutors, who have spent three years looking for wrongdoing in the Trump-Russia probe. He claimed Sussmann lied during a 2016 meeting in which he passed a tip to the FBI about Donald Trump and Russia.

The Washington, DC, federal jury deliberated for six hours over two days before reaching its verdict.

The Sussmann case revolved around his September 2016 meeting with James Baker, a friend who was the FBI's general counsel. Sussmann passed along a tip that led to a four-month FBI inquiry into a possible internet backchannel between the Trump Organization and Kremlin-linked Alfa Bank. Both companies denied the claim, and the FBI didn't find any improper cyber links.

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