Watch live: Trump makes final pitch for GOP in South Carolina
The most telling detail here is that a Graham needs help at all. South Carolina has been about as reliably red as a state gets, and the Graham name carries real weight, especially after Lindsey's long tenure. If Darline Graham is in a genuinely competitive race against Annie Andrews, that tells you something about the mood of the electorate right now, and it goes beyond whatever Trump's coattails are doing.
I'd want to know more about what's driving Andrews' numbers. Is it local frustration, a strong ground game, or a broader backlash that's showing up in unexpected places? The rally itself is a sign that the GOP sees this as a race worth spending political capital on, which usually means they're worried.
Where I land: this is a race worth watching not because it's the biggest one next week, but because it's the kind of upset that, if it happens, gets remembered as the warning sign everyone missed. If a Graham loses in South Carolina, every other safe seat in the country suddenly feels less safe.