"My clients and I are in still in the investigatory phase of our litigation strategy and exploring all our options," Riddell says in response to the mayor's comments. "My clients also believe that this is a matter of public concern, and the people of Portland have a right to know, question and openly criticize Mr. Wheeler as a public officer. Open discussion of this matter is why the First Amendment exists. I invite Mr. Wheeler to join me at the public forum of his liking to debate his actions."