The American Bar Association is facing mounting pressure to move a conference in Phoenix scheduled for next week after its co-sponsor backed out and two New York public interest law groups called for a boycott to protest Arizona’s controversial new immigration law.

The City Bar Justice Center, the pro bono arm of the New York City Bar, on Monday called for the conference to be moved to another state, while the Legal Aid Society said three employees who had intended to go will not attend. The board of the National Legal Aid & Defender Association, which was to co-sponsor the conference, voted late Monday to pull out of the event.