June 9, 2026 – Maine, South Carolina primary election, Graham Platner will win race, CNN projects

Broader political implications

The June 9 primaries underscore two contrasting political dynamics: an insurgent, outsider-driven Democratic contest in Maine, and a structurally Republican-leaning battlefield in South Carolina.

Political analysts say Platner’s nomination represents both an opportunity and a risk for Democrats, as his personal controversies could become central in the general election against Collins, one of the most entrenched incumbents in the Senate.

The general election campaigns are now expected to intensify, with control of the U.S. Senate potentially in play depending on outcomes in a handful of competitive states.