U.S. Attorney General Eric Holder says an investigation into Maricopa County Sheriff Joe Arpaio is serious and ongoing.
Holder said he expects the probe conducted by Justice Department's civil rights division and the Arizona U.S. attorney's office "will produce results." Holder made the remarks during a visit to Phoenix to attend a mortgage fraud task force meeting on Thursday.
Several Maricopa County employees have been called before a federal grand jury that's examining abuse-of-power allegations against Arpaio and a second federal investigation that Arpaio has said focuses on his immigration enforcement.
Holder didn't reveal any details of the probe, citing the ongoing investigation.