Janet Mills, the Maine governor, suspended her bid for the US Senate on Thursday, just weeks before the Democratic primary.
Mills, who received support from the Democratic establishment in Washington DC, said she no longer had the “financial resources” to face off against first-time candidate Graham Platner, an oyster farmer and former marine, in the 9 June primary. Mills’s exit leaves Platner as the main Democrat vying to unseat Susan Collins, the five-term Republican incumbent, in a race that has become one of the most closely watched competitions in the country this midterm cycle.