Final thought: Haley could actually win delegates tonight
We don't have final results by congressional district (much less overall), but as we can see from a map of the results, Haley is doing better along the coast near Charleston than in much of the rest of South Carolina. That may signal that Haley could carry the 1st Congressional District once all is said and done to win three delegates. That may not seem like much, but Trump swept South Carolina's delegates in 2016, and if Haley is sticking around, winning any delegates has to be part of her strategy to carry on.
Half of the 1st District's population is in Charleston and Beaufort counties, according to Daily Kos Elections — both of which Haley currently lead in. Another 49 percent of the district lies in Berkeley and Dorchester counties, both of which Trump holds an edge in (the remaining 1 percent is in Colleton and Jasper counties). Charleston and Dorchester are both split between the 1st and 6th, so we can't figure out the district-level result based purely on the county-level numbers. So we'll have to see. But Haley's showing in the 1st might be her one bright spot tonight.
—Geoffrey Skelley, 538