The Minnesota prosecutor who charged a federal immigration agent with felony assault received more than $286,000 in backing from far-left political groups and dark-money nonprofits, according to campaign finance filings reviewed by the Washington Examiner, raising scrutiny as tensions escalate between federal authorities and local officials.

Hennepin County Attorney Mary Moriarty announced Thursday that Immigration and Customs Enforcement agent Gregory Donnell Morgan Jr. is facing two counts of second-degree assault after allegedly pointing a firearm at occupants of a vehicle during a February highway incident in the Minneapolis area.