Columbia

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Republican U.S. Senate candidate Richard Cash speaks after signing an agreement to support any challenger who gets into a runoff with U.S. Sen. Lindsey Graham in June, on the steps of the Statehouse, Thursday, March 13, 2014, in Columbia, S.C. Six GOP candidates have said they want to take on Graham as he seeks a third term. (AP Photo/Jeffrey Collins)

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Republican U.S. Senate candidate Lee Bright speaks after signing an agreement to support any challenger who gets into a runoff with U.S. Sen. Lindsey Graham in June, on the steps of the Statehouse, Thursday, March 13, 2014, in Columbia, S.C. Six GOP candidates have said they want to take on Graham as he seeks a third term. (AP Photo/Jeffrey Collins)

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This undated photo provided by the Midlands Authority for Conventions, Sports and Tourism shows the picture and text from an historical marker that will be unveiled in Columbia, S.C., on Friday, March 14, 2014. The city is unveiling a series of markers officials hope will help educate visitors and residents alike about the city's place in history. (AP Photo/Midlands Authority for Conventions, Sports and Tourism)

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A pedestrian walks past an historical marker in downtown Columbia, S.C., on Thursday, March 13, 2014 a day before it is unveiled. On Friday, March 14, 2014 the city is unveiling a series of markers officials hope will help educate visitors and residents alike about the city's place in history. (AP Photo/Bruce Smith

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Protesters wait to be written tickets during a protest of South Carolina's decision not to accept federal money to expand Medicaid on Tuesday, March 11, 2014, in Columbia, S.C. This is the second week Truthful Tuesday protesters have blocked the road into the Statehouse garage. (AP Photo/Jeffrey Collins)

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Nurse David Ball talks to reporters about why he planned to get a ticket as he protests South Carolina's decision not to accept federal money to expand Medicaid on Tuesday, March 11, 2014, in Columbia, S.C. This is the second week Truthful Tuesday protesters have blocked the road into the Statehouse garage. (AP Photo/Jeffrey Collins)

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Nurse David Ball, center, waits to be written a ticket as he protests South Carolina's decision not to accept federal money to expand Medicaid on Tuesday, March 11, 2014, in Columbia, S.C. This is the second week Truthful Tuesday protesters have blocked the road into the Statehouse garage. (AP Photo/Jeffrey Collins)

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State Education Superintendent Mick Zais speaks to an Associated Press reporter on Thursday, Feb. 27, 2014, in Columbia, S.C. Zais wants to spend his final year in office promoting ideas like giving high school students more choices of the courses they take to graduate. (AP Photo/Jeffrey Collins)

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State Education Superintendent Mick Zais speaks to an Associated Press reporter on Thursday, Feb. 27, 2014, in Columbia, S.C. Zais wants to spend his final year in office promoting ideas like giving high school students more choices of the courses they take to graduate. (AP Photo/Jeffrey Collins)