美国民主社会主义者支持的候选人赢得了足够多的初选，并制造了足够多的噪音，令共和党人欣喜。这与20世纪80年代的英国有着惊人的相似之处。如何阻止极端分子让一个政党变得无法当选。
Candidates backed by the Democratic Socialists of America are winning enough primaries, and making enough noise, to delight Republicans. The parallel with Britain in the 1980s is striking How to stop extremists from making a party unelectable