Political polarization is growing in this country, said CCLP senior fellows Matthew Dowd and Narda Zacchino at a Communication Leadership Roundtable at the new Wallis Annenberg Hall on March 23. The data, Dowd said, shows that "we're at the most polarized state that we've ever been in." Left to right: Narda Zacchino, Matthew Dowd, Geoffrey Cowan, and Geoffrey Baum Dowd and Zacchino were joined by CCLP director Geoffrey Cowan and CCLP advisory board members and senior fellows who were in town for a board meeting prior to the event, as well as staff and students from the USC Annenberg School……