A federal judge won’t block a controversial Trump administration initiative to share highly sensitive taxpayer information with federal immigration authorities in hopes of tracking down undocumented immigrants and quickly deporting them out of the country.

A federal judge is refusing to block the Internal Revenue Service from sharing immigrants’ tax data with Immigration and Customs Enforcement for the purpose of identifying and deporting people illegally in the U.

A federal judge ruled Monday that the Internal Revenue Service can share taxpayer data with immigration authorities to locate undocumented immigrants for deportation.