The Republican National Committee on Sunday released an ad online attacking CNN and NBC for alleged media bias over their decision to produce documentaries about Hillary Clinton, a potential 2016 presidential contender.


The RNC has threatened to end its partnership with the two networks in the hosting of 2016 GOP primary debates if they don't cancel plans for the Clinton documentaries.


The ad includes footage from Clinton's testimony before the Senate Foreign Relations Committee on the September 2012 attack in Benghazi, Libya, with a subtitle that reads, "Here's one clip they might 'forget' to show you." The footage covers Clinton's heated exchange with Sen. Ron Johnson (R-Wis.) as the then-secretary of state was questioned about the attack on a U.S. facility that resulted in the death of four Americans, including U.S. Ambassador Chris Stevens.


"Was it because of a protest or was it because of guys out for a walk one night who decided to kill some Americans? What difference at this point does it make?" Clinton said before the committee.


The ad contrasts Clinton's testimony with that of Eric Nordstrom, a former State Department regional security officer in Libya, who said, "What happened prior, during and after the attack matters, and it matters to my colleagues at the Department of State."


The RNC urges viewers to "Stop Media Bias" by signing its petition to "drop planned programming promoting Hillary Clinton."


The Sunlight Foundation reported that while the spot is a good broadcast TV length at around 30 seconds, there is no evidence of it being included in any recent ad buys.


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