Leibowitz presided over the investigation and settlement of search giant's antitrust probe.
FTC Chairman Jon Leibowitz Resigns After Google Settlement : Read more
FTC Chairman Jon Leibowitz Resigns After Google Settlement : Read more
"I felt like this was a good time to leave because we got through a number of things that I wanted the commission to address,"
He was believed to have been chosen predominately due to his stance on aggressively enforcing antitrust laws and online privacy issues.