Voters in four U.S. states—Maine, Nevada, South Carolina and North Dakota—cast ballots in midterm primary elections on Tuesday ahead of the November 2026 elections. The largest focus is in Maine, where Democratic U.S. Senate candidate Graham Platner is running after drawing recent controversy and scandal-related headlines. Multiple outlets describe Tuesday’s voting in Maine as a key test for whether Platner can win his party’s nomination despite the allegations that have been public in recent weeks.
Outside Maine, primaries in South Carolina, Nevada and North Dakota also determine party nominees for a range of governor and congressional races. The outlets note that voting timelines differ by state, with polls closing later in South Carolina, while the other states hold their own schedules for ballot processing and results. Collectively, the coverage frames Tuesday’s elections as an early measure of party support that could shape the lineup for the November general election contests.