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Mark Lynch Gains Ground Against Graham Ahead of Primary

3/21/2026

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Summary

Story summary

Mark Lynch, a businessman challenging U.S. Senator Lindsey Graham (R-S.C.), trails 21% to 41% with undecided voters ahead of the May primary.
When voters learn candidates' records, Lynch rises to 34% while Graham drops to 23%.
Lynch has invested more than $1 million and plans to spend another $3.5 million before the primary.
Graham responds with attack ads, signaling that he takes the challenge seriously.

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Story summary

Mark Lynch, a businessman challenging U.S. Senator Lindsey Graham (R-S.C.), trails 21% to 41% with undecided voters ahead of the May primary.
When voters learn candidates' records, Lynch rises to 34% while Graham drops to 23%.
Lynch has invested more than $1 million and plans to spend another $3.5 million before the primary.
Graham responds with attack ads, signaling that he takes the challenge seriously.