COLUMBIA, S.C. — A Blythewood High School senior missed her government class Monday. But at least she had an excuse that’s related to the course. Shanlyn Todd, 18, attended former South Carolina Gov. Nikki Haley’s campaign stop and made sure she received a note from the Republican presidential hopeful. “She was with me during her government class,” Haley wrote on a “Pick Nikki” sign. “God Bless. Nikki Haley.” Todd attended Haley’s midday campaign stop at Thunder Tower Harley Davidson in Elgin with her parents, Jess and Angela Todd. “I want her to experience this,” Angela Todd said, adding she …