http://www.nytimes.com/2016/05/11/us/politics/hillary-clinton-donald-trump-campaign-character-negative.html
Mrs. Clinton has vowed to stick to issues. “I’m not going to run an ugly race,” she said over the weekend.
With polls showing that Mrs. Clinton and Mr. Trump, the likely nominees, are more unpopular than the candidates in any of the past 10 White House matchups, their campaigns are exploiting their rivals’ perceived flaws to appeal to certain demographic groups to reshape the Electoral College map.