Sen. Lindsey Graham wins GOP primary, defeating wealthy challenger in South Carolina

Sen. Lindsey Graham has won his Republican primary in South Carolina, NBC News projects, after spending millions to secure the nomination. Graham faced multiple primary challengers on Tuesday, but the biggest threat came from self-funding businessman Mark Lynch, who loaned his campaign $5 million. Graham’s campaign spent more than $13 million on ads in the race, according to AdImpact, as he battled Lynch for the GOP nod. Graham got a boost from Trump, who endorsed the four-term senator last year, and Graham touted his record and his work with Trump in the primary. In one campaign ad, a narrator said...