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.

The IRS has faced internal turmoil over the Trump administration's push to broaden access to taxpayer information.

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.