A federal judge blocked an attempt by the Trump administration to subpoena Minnesota Gov. Tim Walz, along with other state officials. 

The subpoenas are part of an investigation into allegations they impeded law enforcement during an immigration operation in the Minneapolis-St. Paul area. 

In the ruling, which was unsealed on Monday, U.S. District Judge Patrick Schlitz wrote that the Trump administration's subpoenas were meant to "coerce Minnesota officials into assisting the federal government with enforcing civil immigration law and to harass and retaliate against them" for refusing to do so, the Associated Press reported.

Schlitz wrote that the connections between the information sought and any possible criminal violation appeared to be "extremely weak to nonexistent." 

Walz said in a statement that the Justice Department is targeting President Donald Trump's political opponents, and he called the ruling a "victory for the rule of law and our democracy."