Harris Diamond and Mark Penn square off at Advertising Week

An Advertising Week discussion on political marketing fittingly turned into a bit of debate as Harris Diamond, chairman and CEO of McCann Worldgroup, squared off with MDC Chairman-MDC Mark Penn over the coming election and what role marketers should—and should not—play in it.Penn, who is also president and managing partner of Stagwell Group and who spent much of his career as a political consultant, urged caution for brands who weigh in on the election and social issues. Diamond, whi