Bill McIntyre, former National Rifle Association (NRA) chief spokesperson and now EVP at DC-based Grassroots Enterprise, has plenty of experience making partisan arguments. Yet, while recently counseling a client, he argued to colleagues the benefits of reaching out to both sides of the political aisle in a public affairs campaign.

McIntyre describes a requirement of successful public affairs work in the nation's capital as "having your base and stealing a few from the other side." He recalls nudging his colleagues ...