GOP power broker Cindy Costa

Updated 2327 GMT (0727 HKT) January 19, 2012
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Cindy Costa, a South Carolina Republican activist who says she's motivated largely by her evangelical faith, has endorsed Mitt Romney for president. Here the two attend a 2008 fundraiser. Costa's political career has evolved from a rebel who once backed Pat Robertson for president in 1988 to a GOP establishment insider. Courtesy Cindy Costa
Costa and her husband, Louis, right, attend a Christian Coalition reception at televangelist Pat Robertson's home in fall 1992. Costa helped launch the coalition's South Carolina chapter. Courtesy Cindy Costa
Costa appears with President George H.W. Bush at the fall 1992 reception at Robertson's home. Courtesy Cindy Costa
Costa holds a "Knock 'Em Flat Pat" sign during Robertson's address to the 1992 Republican National Convention in Houston. Courtesy Cindy Costa
Costa, right, and Ann Romney crisscrossed South Carolina on a bus tour during the 2008 primary in that state. "Relationships are a powerful thing," Costa says of the time she spent campaigning with the candidate's wife. courtesy cindy costa
Costa, right, chats after the Myrtle Beach prayer breakfast in January. For 15 years, Costa has served on the 150-member Republican National Committee, the party's governing body. David Ruff/CNN