FILE - Sen. Ron Johnson, R-Wis., the ranking member of the Senate Permanent Subcommittee On Investigations, speaks as the panel holds a hearing on charges of corruption and misconduct at the U.S. Penitentiary in Atlanta, at the Capitol in Washington, Tuesday, July 26, 2022. Democrats on Tuesday, Aug. 9, are also picking a candidate to face two-term GOP Sen. Ron Johnson for control of the closely divided chamber. (AP Photo/J. Scott Applewhite, File)