While the presidential debates have earned record television viewing audiences and have revealed interesting perspectives, employees should be discouraged from engaging their colleagues in heated political debates of their own. Supervisors in particular should not share their political beliefs with employees. What gets a pass as campaign rhetoric could create serious issues in the workplace ranging from creating low moral to potential legal issues.
My advice - employers, follow the law in allowing time off for voting, and employees, exercise your choice and keep it to yourself.