"He's Discarded the Dog Whistle in Favor of a Bull Horn"

"These cynical methods are precisely what the leaders of the Party of Lincoln have spent the last decade trying to bury. Speaking before the NAACP national convention in July 2005, Republican National Committee (RNC) chair Ken Mehlman acknowledged the party's 'Southern Strategy' and directly apologized: 'I am here as Republican chairman to tell you we were wrong.' In 2010, Michael Steele—the first black head of the RNC—admitted in a talk with students at DePaul University that Republicans had given minorities little reason to vote for them: 'For the last 40-plus years we had a Southern Strategy that alienated many minority voters by focusing on the white male vote in the South.' Following Mitt Romney's 2012 defeat, RNC chair Reince Priebus presided over what came to be known as 'the autopsy report,' which laid out a roadmap for Republican candidates, emphasizing that future electoral success depended on reaching out to ethnic minorities and young people.
"Trump seems to have missed the memo."

Robert P. Jones at The Atlantic discusses how Donald Trump "has resurrected divisive GOP campaign tactics that target and alienate minorities."