When you don't know enough about a topic to narrow to a research question or to formulate a thesis, it's a good idea to do some background research.
Sources like subject-specific encyclopedias, handbooks, and dictionaries can help you define unfamiliar terms and provide you with a better idea about the issues revolving around your topic.
CQ Researcher and Opposing Viewpoints might also help you browse topics.
Learn about major issues from current and historical perspectives and the inner workings of the U.S. government from authoritative, accessible, and unbiased sources.