Ilya Somin (George Mason University - Antonin Scalia Law School, Faculty) has posted Obama's Constitutional Legacy (Drake Law Review, Vol. 65, No. 4, pp. 1039-1053, 2017 (Symposium on "President Obama's Constitutional Legacy")) on SSRN. Here is the abstract:
President Obama leaves behind a mixed legacy on constitutional issues — one that is likely to remain controversial for a long time to come. Its most dangerous element may be the precedents he set for unilateral presidential initiation of war. More positively, the President played an important role in the establishment of a constitutional right to same-sex marriage, and his Administration’s policies unintentionally led to litigation that resulted in stronger judicial protection for federalism, property rights, and religious liberties. Obama’s judicial appointments are notable for their impressive professional qualifications and strong support for liberal judicial ideology. The long-term constitutional impact of the Obama presidency remains to be seen.