2015年，美国公众对公共政策的看法变化比较显著，非建制政治力量崛起引起广泛关注。本年度，公众政策优先排序变化显著，对奥巴马医疗改革的看法更加正面。两党内的总统选举提名角逐已经激烈展开，非建制力量抬头明显。联邦和州政府领导层变动比较明显，三权关系的新变化在联邦层面尤其明显。在政府治理中，州法官选举财务改革、医改政策落实以及同性婚姻合法化等举措都有比较深远的影响。
In 2015，there emerged a marked change among the American public in the perceptions of public policy，while the rise of candidates outside the political establishment attracts widespread concerns. The public’s policy priorities changed significantly and their perceptions on health care reform become more positive. Pitched battle within both Democrats and Republicans for the nomination of 2016 presidential election is being unfolded in full swing. The rise of non-establishment candidates is an extraordinary phenomenon. The leaderships in federal and state governments change significantly. Changes in inter-governmental relations are particularly evident in the federal level. In terms of governance，the finance reform of state judges election，the implementation of Obamacare and the legalization of same sex marriage are achieved with profound influence.
