The hearing will mark Barr's first testimony before the House Judiciary Committee since he took office in February 2019.

McConnell called the proposal a "tailored and targeted" plan.

"John Lewis lived and worked with urgency because the task was urgent."

It has pulled out as host of the first 2020 U.S. presidential debate on Sept. 29.

"We think we're in very good shape to be doing that."