New Perry TV ad calls him best prospective commander in chief

According to the campaign, Perry is the only candidate in the race for president who volunteered to serve in the U.S. military. He is not the only candidate who served.

Perry moved his campaign to South Carolina after a disappointing fifth-place finish in Iowa, earning 10 percent of the vote. He skipped New Hampshire's primary, where he took 1 percent on Tuesday, instead pleading with South Carolina voters to "take a second look." 

If Perry can't regain traction in South Carolina, it could be the end of his struggling campaign. The primary is set for Jan. 21.