Greg Katsas said last week he was in a “state of panic” as he faced the prospect of arguing before the U.S. Supreme Court in the health care cases on March 26.

The lawyers challenging the Afford­able Care Act had only recently tapped Katsas, a member of the team and a partner at Jones Day, as the person who would try to convince the Court that it has jurisdiction over the litigation in spite of the Anti-Injunction Act.