"As the technology review progressed, Assistant Attorney General Makan Delrahim revisited potential conflicts with previous work with the Department of Justice's ethics office," said a DOJ spokesman in an emailed statement Tuesday. "He and the ethics office have decided that he should now recuse himself from a matter within the tech review in an abundance of caution."
CNET Now Newsletter
Editors' top picks of the day delivered to your in box. It's FREE!
Google's online ad tools, largely built around the DoubleClick acquisition, are becoming a major focus of the Justice Department investigation, according to a report Wednesday from The Wall Street Journal. The DOJ has reportedly reached out to more than a dozen companies as part of its probe, including "publishers, advertising technology firms and advertising agencies."
Associate Deputy Attorney General Ryan Shores will continue to oversee the tech review, said the DOJ spokesman, with assistance from Deputy Assistant Attorney General Alex Okuliar.
Watch this: Google shows off the power of Assistant
Take a look at Google's quantum computing technology