Arapahoe County Democrats say they’re working to resolve racial tensions within the party after a years-old remark about “too many blacks” running for office in the county resurfaced recently on social media and in a newspaper article, reigniting a long-simmering controversy. The conflict stems from a candidate training session conducted by party officials in Aurora nearly three years ago when comments — there’s sharp disagreement whether the handful of words were overly blunt, too clumsy, poorly chosen, insensitive or downright racist — left some uncomfortable and others offended, while still others contend the words were misinterpreted beyond recognition. But it’s what happened next that stoked rancor that persists years later, and that’s what party officials say they are determined to mend.