Lorenia Valles Sampedro leads the Sonora governor race at 67.5% implied probability after Morena named her state coordinator for the transformation project in late September 2026, positioning her as the party's virtual nominee for the June 6, 2027 election. Recent polling from early October shows her in a technical tie or narrow lead with PAN's Antonio Astiazarán Gutiérrez, while trailing Morena's stronger party-level support. Mid-October developments include the Labor Party (PT) and Green Party (PVEM) shifting to back her candidacy after earlier internal tensions, consolidating the ruling coalition. Lower-priced contenders such as Luis Donaldo Colosio Riojas and others trail in surveys, reflecting limited momentum outside their respective parties ahead of precampaigns scheduled to begin in December 2026.