JPMorgan Chase CEO Jamie Dimon gave an impassioned defense of the Iran war, dismissed the idea of running for office and pointed at plans for his post-CEO future in an interview with Jim VandeHei for a new episode of "The Axios Show."Why it matters: Dimon, who once served as chairman of the Business Roundtable, has outsized influence in the American business landscape.The big picture: Dimon was reluctant to criticize President Trump across a number of issues.On the Iran war, Dimon dismissed the...