The contemporary United States also is not a compelling demonstration that competition between two parties leads to increasing moderation and political centrism. On the contrary, the partisan struggle can play to the parties’ extremes.
美国今日的现实也无法令人信服地证明，两党竞争有利于消弭分歧、壮大政治中坚派。恰恰相反，党争有时会让一个党派走极端。