In Class Actions in the Era of Trump: Trends and Developments in Class Certification and Related Issues, law profs Jack Coffee and Alexi Lahav just that. Here's the abstract:
In this memorandum prepared for the Annual ABA National Institute on Class Actions, Professors Coffee and Lahav review and assess developments in class certification over recent years, and track trends in approaches to certification. Special attention is given to securities litigation, the use of confidential witnesses, ascertainability, attorney's fees, standing, mootness, statutes of repose, and the impact of recent Supreme Court decisions, including Halliburton II and Spokeo.