The article compares immigration policies in the U.S. and the European Union. It looks at why the U.S. struggles with immigration reform while the EU is working on a unified system. The researchers discuss different ways immigrants are integrated in both places and how citizenship plays a role. They suggest that the U.S. has a better chance of successfully integrating immigrants. The EU needs to focus on giving immigrants access to citizenship for integration to work. In the U.S., policies should ensure that immigrants have similar legal rights as citizens for successful integration.