2 GOP frontrunners in the Ohio Senate race squared off during a heated debate moment: 'You watch what happens'

Two leading candidates in the Republican primary for the US Senate race in Ohio squared off during a heated exchange at a debate on Friday evening in Columbus, Ohio.

Video of the debate showed Josh Mandel, former Ohio state treasurer, stand up and get in the face of Mike Gibbons, an investment banker, while trying to confront him about an investment.

Mandel stood up as Gibbons told him "you may not understand this" because "you've never been in the private sector your entire life."

"Two tours in Iraq, don't tell...