The following links are much better than random Google searches for finding the information you need. These collections of information have been put together by the library with political science research in mind.
1. The library's website has a page chock full of useful databases and indexes ranging from Gallup polls to UN Treaties. It's worth looking at.
2. Information on Governments, be they local, state, national, or foreign.
3. Sawyer Library has a large collection of Congressional records.
4. FRANCIS search for political science periodicals.
Should you have any questions, or wish to make a research appointment at Sawyer Library, feel free to contact the library liaison for Political Science, Rebecca Ohm.