Former Gov. Mark Sanford was on the campaign trail Friday, while former Charleston County Councilman Curtis Bostic was getting support from the faith community.

Both were looking for an edge as they entered the final weekend of campaigning before Tuesday’s Republican primary runoff in the 1st Congressional District race.

For Sanford, the final push began with an appearance at a Summerville Waffle House, followed by visits to the Rutledge Cab Co. restaurant and a James Island auto shop.

Bostic was buoyed by endorsements from more than 40 Lowcountry clergy. The Rev. Greg Smith, pastor of Grace on the Ashley Church in Charleston, said many clergy consider social and moral issues first.

“Many local clergy are taking a stand and saying that issues like the sanctity of marriage, personal morality, honesty and integrity are still virtues they expect in their representatives,” he said.

Sanford and Bostic, who were the top two finishers in the GOP primary, will make another pitch to potential voters at 9:30 a.m. today when they appear on WCBD-TV (Channel 2). The 30-minute special edition of “Beyond the Headlines” will be hosted by WCBD’s Brad Franko.

Polls for the Republican runoff will be open from 7 a.m. to 7 p.m. Tuesday. The GOP winner faces Democrat Elizabeth Colbert Busch and Green Party candidate Eugene Platt on May 7.

Reach Robert Behre at 937-5771.