Our databases have articles which you can use for biographical, contextual, and historical information on your political philosopher. Try a variety of search terms until you find what you are looking for. For example, let's say my political philosopher is Karl Marx. Some search I might try are:
As you read more about your political philosopher you will learn new keywords which can be used in subsequent searches.
View the tutorials on how to search in the suggested databases, and then use those databases to research your topic.
This tutorial teaches you to search for a political philosopher in the library database Biography in Context.