Money, not ideology, incentivizes local authorities to help the federal government detain immigrants

In recent years, a great deal of immigration enforcement has moved from the federal to the state level. But how can we explain why some local governments are more or less in favor of immigration enforcement? In new research Jillian Jaeger finds that local governments and law enforcement agencies are being incentivized to help the federal government detain immigrants. She writes that these federal incentives can mean that areas which are more favorable towards immigrants can actually have tougher enforcement policies in comparison to more conservative, but under-resourced, areas.