A federal judge invalidated grand jury subpoenas targeting Minnesota officials for their opposition to a federal immigration operation.The court ruled that the Department of Justice actions were retaliatory and lacked any legitimate criminal basis while misusing legal processes.This decision protects figures like Tim Walz and Jacob Frey from federal pressure regarding their refusal to enforce immigration mandates.The ruling stands as a major check on executive power amid ongoing claims that the government is politicizing criminal investigations.