guest: i have been director of muhlenberg college institute of opinion for over 20 years. in allentown, pennsylvania, the eastern side of the state. we get a lot of public opinion polling. not in the commonwealth but some national survey to policy issues like energy and the environment. host: when it comes to elections, when you do poll, can you talk a little bit about your process, who you talk to, the amount of people you talk to? guest: over time it has evolved in terms of the process and methods that we use in polling pennsylvanians in election seasons. our standard methodology is still telephone. primarily cell phone in terms of a contact point for individuals. our sampling is based off voter files as our frame. we use voter files to allow us to get a sense of the past voting records of the individuals we will be calling. background information demographically about them we can help in our modeling for the state. our sample size is around 400 to 500 based on our capabilities. there are various races throughout the state. this fall we are looking statewide with polls i