Prior to his EPA role, he was a Wisconsin assistant attorney general and director of the state's environmental-protection judicial unit.

The Sixth Circuit Court of Appeals reversed the injunction, finding for the EPA and the Army Corps of Engineers in 2016.

The case, now styled National Association of Manufacturers v. Department of Defense, was heard by the Supreme Court in October 2017.

[4] Ross was nominated for the post of Assistant Administrator of the Environmental Protection Agency (Office of Water) on September 2, 2017.

Ross' nomination was received in the Senate and referred to the Committee on Environment and Public Works on September 5, 2017.