Incumbent Sen. Lindsey Graham is dominating early returns with 65.4% of the vote, well ahead of challenger Mark Lynch at 22.8%. Polls have just closed in Maine, while early votes are pouring in from South Carolina as voters in four states cast ballots on Tuesday in the latest round of 2026 midterm primaries.Signage during a primary election night event with Graham Platner, Democratic US Senate candidate for Maine, not pictured, at the Blue Hill YMCA in Blue Hill, Maine, US. (Bloomberg)Results (As of 8 p.m. EDT)South Carolina (Polls closed 7 p.m. ET)US Senate Republican PrimaryIncumbent Sen. Lindsey Graham is dominating early returns with 65.4% of the vote, well ahead of challenger Mark Lynch at 22.8%. Graham is on track for an easy renomination, according to NBC News.US Senate Democratic PrimaryState Sen. Annie Andrews leads with 59.9% against Brandon Brown at 31.8%.Governor Races (Likely Runoffs)Republican Primary: Lt. Gov. Pamela Evette leads with 35.4%, followed by Wilson at 22.2%. A runoff appears likely on June 23.Democratic Primary: Joe Johnson leads with 55.7% over Webster at 33.4%.Maine (Polls closed 8 p.m. ET)Results are not yet available for the high-profile Democratic Senate primary. Marine veteran and oyster farmer Graham Platner enters the night as the heavy favorite to win the nomination and face incumbent Republican Sen. Susan Collins in November.Maine’s Democratic primary for the open 2nd Congressional District is also being watched closely.Nevada and North DakotaPolls closed at 10 p.m. ET in Nevada and earlier in North Dakota. Early results are still pending for key races, including Nevada’s competitive governor and congressional primaries.Vaishnavi Vaidyanathan leads the US Desk at Hindustan Times, where she writes, strategises coverage, and ensures quality across all beats. With eight years of experience covering US news for leading publications, she has reported extensively on politics, entertainment, and sports. Vaishnavi holds a graduate degree in English, Journalism, and Psychology, and completed her PG Diploma in Broadcast Journalism from the Manorama School of Communication, where she was awarded the prestigious Mammen Mappillai Award for Best Outgoing Student. She began her career at the International Business Times (US Edition), covering US breaking news, politics, and entertainment. She later joined Opoyi, reporting across all beats, including US sports and trending stories. Prior to Hindustan Times, she served as World Lead at Times Now News, covering comprehensive world news and events. Vaishnavi has expertise in politics, entertainment, and breaking news, and enjoys tackling stories across a wide range of topics. Beyond the newsroom, she is an avid traveller, a foodie who loves exploring new restaurants, and a pop culture enthusiast who enjoys watching latest shows and films. She also enjoys engaging in debates and discussions on Reddit.Read MoreSee Less