Former Attorney General Eric HolderEric H. HolderVoting advocates notch win at Supreme Court Flynn refusal sets up potential subpoena showdown House votes to expand death penalty for police killings MORE touts Democratic presidential candidate Hillary ClintonHillary Rodham ClintonClinton: ‘I don’t die’ despite the right’s ‘best efforts’ Clinton: Comey firing is ‘an effort to derail and bury’ Russia probe RNC slams Clinton speech as example of 'why she lost' MORE as a champion of civil rights in a new Clinton campaign ad in South Carolina.

"If you want to make sure Republicans don't take us backward, help Hillary move us forward," he says in the video, evoking President Obama's "Forward" campaign theme in 2012. 

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Holder, the first African-American attorney general, also notes that Clinton is in favor of tougher gun laws and "police accountability."

The 30-second spot, Clinton's first in South Carolina, comes a few weeks ahead of the Palmetto State's Feb. 27 primary. 

The ad airing this week is part of a broader ad buy in Charleston, Columbia, Greenville-Spartanburg and Florence-Myrtle Beach, according to Clinton's campaign. 
 
Holder was previously featured in a similar 60-second radio ad for Clinton released last week. He positions himself as a target of Republicans and ally of Clinton in the ads.
 
South Carolina holds the fourth voting contest after Iowa, New Hampshire and Nevada. Clinton is widely viewed as having strong support among black voters in South Carolina.
 
Clinton squeaked out a win over rival Sen. Bernie SandersBernie SandersThe Hill's 12:30 Report Five takeaways from the Montana special election Hillary Clinton targets troubled Trump, divided GOP with new PAC MORE (I-Vt.) in Iowa on Monday, and is in New Hampshire ahead of the Feb. 9 primary there where Sanders is leading in most polls.