Self-identified liberals are an important part of the Democratic base, but they sure aren't the only part, or even the biggest one. Most African-Americans, who voted 90% Democratic, do not describe themselves as liberals. Neither do most Hispanics.
In October 1994, HotWired made history by placing on their website the very first banner ad for none other than AT&T. That may not have seemed significant at the time, but it represented a very significant shift in advertising modality.
If you're a company that's riding on the social media bandwagon, make sure you have the people in place who have creativity, an understanding of new media, and a voice and tone that is inviting to a broad audience.
Let's answer the "Am I an expert?" question once and for all. If I say you are an expert, you are. If this or that person groups you with other experts to answer a question, don't deny your inclusion. Don't make excuses. Smile widely and accept it.