Midday voter turnout in Beaufort County is higher than expected.
Scott Marshall, the county's top election official, said turnout could end up somewhere between 20 and 25 percent in Tuesday's 1st Congressional District race.
Typically, special elections only bring about 10 to 12 percent of voters out, he said.
"Unlike a lot of special elections, with this race, you see more media coverage, more TV ads, more phone calls at home. And you've got the celebrity aspect of it," Marshall said.
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Voters have until 7 p.m. Tuesday to choose between Democrat Elizabeth Colbert Busch, Republican Mark Sanford or Green Party candidate Eugene Platt.
Brisk turnout has also been reported in Charleston County. The two counties comprise the highest number of voters in the five-county district.