Anyone who has seen examples of strong leadership in the military from their CO or 1SG, from their CEO, or even their principal. My first boss out of college, when I was a public school teacher, actually stands out was one of the best leaders I had the pleasure of working for in the last 15 years.
Notice the humility, the focus on strong organizations, teamwork, and putting egos aside to solve a common purpose. This is definitely worth watching regardless of the politics (or your thoughts on Obama), but this sort of talk is impossible to imagine from a Dubya or Clinton. Not sure about McCain.