I need some help and guidance to answer this question.

Lori, a manager,started ablogon the company website for the company softball league. She noticed a worker, Seth, was protestingthat employees were not getting paid enough and that benefits were costly.Lorireprimanded Seth and the next day, Seth posted a sign-up sheet on theblogto start a union.Lori fired Seth a week later when he failed to show to work one day.Can Seth sue for wrongful termination and prevail?