Former vice presidential candidate Sarah Palin endorsed First District congressional candidate Tim Scott on Saturday.

Scott faces fellow Republican Paul Thurmond on Tuesday in the GOP run-off election.

The endorsement was apparently first announced on Facebook. Palin wrote that Scott is a "pro-life, pro-2nd Amendment, pro-development, commonsense conservative who's been endorsed by the Club for Growth because of his solid commitment to the principles of limited government and fiscal responsibility."

Palin's Facebook page includes a link to Scott's page.

Former Arkansas Gov. Mike Huckabee announced Thursday that he's endorsing Scott, and Thurmond recently picked up endorsements from Carroll Campbell III and Larry Kobrovsky -- two of the nine candidates who ran for the GOP nomination in the primary.

Scott finished with a roughly 2-1 edge over Thurmond in the June 8 vote.

Thurmond is the son of the one-time segregationist Sen. Strom Thurmond, and Scott would be South Carolina's first black Republican congressman since Reconstruction. Thurmond and Scott served together on Charleston County Council.