Palin will be the headliner at a fundraiser tonight hosted by the Gwinnett County ministry Zachariah's Way. The event - billed as nonpolitical - will benefit the group's program helping churches serve disabled and special needs parishioners.
Palin, the former governor of Alaska who was John McCain's running mate in 2008, has a young son with Down's Syndrome.
She is a sought-after speaker and is considered a possible GOP candidate for president in 2012. Still, ticket sales have been somewhat sluggish for her appearance here. On Monday, tickets to the event had been marked down to half price.