http://fivethirtyeight.com/datalab/hillary-clinton-doesnt-have-a-problem-on-her-left/"None of this is to say that Clinton should blithely dismiss criticism from liberals. It could make it more likely that some credentialed candidate to her left also runs for the Democratic nomination. That could have negative consequences for Clinton even if the challenge is unlikely to succeed. But for Clinton to lose the Democratic nomination for ideological reasons would require a pronounced leftward shift in the party — something close to an ideological realignment — and not incremental change over the next two years."
