You can browse legislation from the 117th Congress (2021-2022) to identify the bill with which you want to work. After you select a bill, head over to Wikipedia. Wikipedia is a good idea for several reasons. First, you can get an up to date overview of your bill (past, present, and future). You can also get a good idea of issues and concepts associated with your bill. And finally, Wikipedia articles have links to relevant sources (e.g. government sources, newspaper articles, social media posts). You know never to cite Wikipedia; but, use it to identify quality information that will guide your research.