ABC News' Devin Dwyer reports: Republican women running for governor in three states made history tonight by clinching victories over their Democratic opponents. South Carolina State Rep. Nikki Haley, Oklahoma U.S. Rep. Mary Fallin and New Mexico district attorney Susanna Martinez will all became the first women to occupy their state’s chief executive office. Haley and Martinez become the country’s first two women of color governors: Martinez will be the country’s first Hispanic woman governor, while Haley will be the country’s first Indian-American woman governor. The big picture outlook for the number of women holding gubernatorial offices is likely to hold steady next year. There are six women currently serving as governors and there will still be at least six in 2011.