Former Special Counsel Robert Mueller will appear before the House Judiciary Committee on Wednesday with one of his longtime aides, Aaron Zebley, by his side, people familiar with the matter told The New York Times. At the last minute, Mueller requested Zebley be sworn in as a witness, but instead, he will be there as Mueller's counsel, offering guidance on how to answer questions about the two-year investigation into Russian meddling in the 2016 presidential election and obstruction of justice. Zebley was a deputy special counsel with "day-to-day oversight of the investigations conducted by the office," Mueller spokesman Jim Popkin said. Zebley was also Mueller's chief of staff when he served as FBI director.

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