Troy Jackson has formally secured the Democratic nomination to challenge Republican Senator Susan Collins in Maine’s 2026 Senate election. The contest matters because Collins is a long-serving incumbent in a state where Senate races can be closely watched nationally.

The supplied article text contains no reporting beyond an access-denied notice, so further details cannot be verified from it. Based on the title alone, Jackson’s nomination establishes the expected Democratic-Republican match-up, but the article provides no vote totals, campaign positions or additional context.