From MSNBC :
Among the potential picks, four women, more than any others, have consistently been mentioned as possibilities in the Republican vice presidential sweepstakes:
- Sen. Kelly Ayotte of New Hampshire, 44, the former state attorney general and relative political newcomer, who just spent a sweltering July 4 campaigning with Romney.
- South Carolina Gov. Nikki Haley, 40, a Tea Party  favorite and one of Romney's early supporters, who recently ducked ethics violations charges related to campaign lobbying.
- Gov. Susana Martinez of New Mexico, 52, the first female Hispanic governor in the U.S., who could potentially give Romney a boost with a constituency he sorely needs .
- Former Secretary of State Condoleeza Rice, 57, who served in the Bush administration and would bring the foreign policy bona fides that Romney lacks.