Bill Barr was briefed on the contents of the statement, so he knows what Mueller is planning to say, according to a source familiar with the plans. When asked if Barr requested that Mueller do this, the source said unequivocally: "No."

Bill Barr was briefed on the contents of the statement, so he knows what Mueller is planning to say, according to a source familiar with the plans.
When asked if Barr requested that Mueller do this, the source said unequivocally: "No." @LauraAJarrett

— Shimon Prokupecz (@ShimonPro) May 29, 2019