We’ve all had bad days at the office. Reed Smith commercial real estate partner Steven Regan, it seems, had one out of the office last week. And now the Am Law 100 firm is trying to make amends.

On October 15 Regan, who is based in the firm’s Pittsburgh headquarters, took to Twitter to opine on the U.S. Supreme Court’s decision to hear challenges to Environmental Protection Agency regulations related to greenhouse gas emissions.