COLUMBIA, S.C. (AP) -- U.S. Senator John McCain says former Oklahoma Governor Frank Keating and former U-S Senator Phil Gramm of Texas are endorsing his campaign for president.
The Arizona senator returned to South Carolina Sunday to try to build support among Christian conservatives for his presidential bid.
The voters in that group can sway the state's first-in-the-South G-O-P presidential primary.
McCain campaigned at a hot dog social then was heading to an evening rally promoting an abstinence program for teenagers in Spartanburg.
McCain is regarded as having the best name recognition and largest network of supporters in South Carolina.
But he has been trying to build support among conservatives who question his opposition to a federal amendment to ban gay marriage.