Donald Trump said he has signed the Republican National Committee's loyalty pledge, vowing to support the party's eventual nominee and to not run as a third-party candidate in 2016.
"I have signed the pledge," Trump announced at a news conference Thursday. "I will be totally pledging my allegiance to the Republican Party and to the conservative principles for which it stands."
Trump was the only GOP candidate on stage during the first debate not to commit to not mounting an independent bid for the White House should he fail to clinch the nomination.
He said Thursday he has no intention of changing his mind: "I see no circumstances under which I would tear up that pledge."
Trump said he has just wanted to be treated fairly by the RNC.
"The RNC has been absolutely terrific over the last two-month period, and as you know, that's what I have wanted, I've wanted fairness," Trump said.