He served as counsel to Attorney General Janet Reno. We can expect the testimony that Attorney General William Barr should have given. In short, Mueller will act and testify with all the dignity and integrity lacking in the current attorney general. Mueller will be factual, dispassionate and, most of all, accurate in his testimony. Therefore, Democratic members of Congress who view Mueller's testimony as an opportunity to conclusively show Trump's guilt will be disappointed as much as those Republican members who think Mueller's testimony will fully exonerate Trump.

Source: CNN July 20, 2019 20:37 UTC