Leo Shane writes that Viola aimed to turn over ownership of his businesses to family members but the plan failed to meet DoD requirements.
Viola is the founder of digital stock trading firm Virtu Financial and owner of the National Hockey League’s Florida Panthers team.
“I offer my continued support for President Trump and his administration, and look forward to redoubling my efforts to support the Army and its veterans as private citizens,” he said in a statement.
Robert Speer, former assistant secretary for financial management at the Army, was appointed to serve as acting secretary of the service branch until Congress can confirm a permanent successor.