One of the most closely watched races in this November's election is that for the U.S. Senate seat held by Pennsylvania's Rick Santorum. Here on WPSU, we've been talking with the candidates. Last week, you heard from the incumbent, Senator Rick Santorum. Yesterday, you heard from the Democratic challenger, state treasurer Bob Casey, Jr. We continue our coverage of the Senate race this morning by introducing the Green Party candidate, Carl Romanelli. WPSU's Cynthia Berger talked with him by phone this past Thursday; Mr. Romanelli spoke from his office in Wilkes-Barre.