February 2, 2016 5:03 PM EST

Hillary Clinton enlisted former Attorney General Eric Holder for her first campaign ad in South Carolina, an early-voting state with a significant African-American population.

Holder, who served as deputy attorney general under President Bill Clinton and in the Obama Cabinet alongside Hillary Clinton from 2009 to 2013, touts his long relationship with her in the ad, titled “25 Years.”

Holder endorses Clinton’s stance on tightening gun laws and increasing police accountability and says that she has “fought her whole life for children, to protect civil rights, voting rights.”

The ad follows a January announcement that Holder, the nation’s first black attorney general, would campaign for Clinton in South Carolina, where more than 25% of the population is African-American. An endorsement from Holder could be as close to an endorsement from President Obama as Clinton would be likely to get on the campaign trail.

The ad is set to roll out in South Carolina, where Clinton may be looking to shore up votes after a narrow victory in the Iowa Caucus. Clinton is more than 30 points ahead of opponent Bernie Sanders in a polling average compiled by RealClearPolitics.

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