Huckabee endorses Enzi in new ad

The ad is from the American Principles Fund, a socially conservative outside group run by Huckabee's daughter, Sarah Huckabee Sanders. The organization aired ads earlier this month criticizing Cheney for not backing a federal amendment to ban same-sex marriage. At the time, Huckabee Sanders told The Hill her father might get involved to help Enzi.

Cheney, the daughter of former Vice President Dick Cheney (R), has had strong fundraising but has otherwise struggled to find a foothold in the race against Enzi. The longtime senator has led in polling by wide margins.