Sen. Jim DeMint (R-S.C.) narrates former Massachusetts Gov. Mitt Romney's (R) latest radio ad, which will begin airing Thursday in South Carolina.

DeMint tells listeners that he needs their help in his fight to end wasteful government spending. DeMint urges South Carolinians to vote for Romney, a president DeMint says will force Congress to change the appropriations system and "end the earmark favor factory."