“It’s a change of heart from the position of a father,” Portman, of Terrace Park, told three Ohio reporters on Thursday during a 45-minute interview in his office. “I think we should be allowing gay couples the joy and stability of marriage.”…

“I’m going to be supportive of Ohioans having the opportunity to marry,” he said. “I would not plan to take a leadership role in this, but people will know my position.”

Portman said his own evolution on the issue began in 2011, when Will, then a freshman at Yale University, made a stunning revelation.

“Will … came to Jane and me and announced that he was gay, that it was not a choice. It was who he is and he had been that way since he could remember,” Portman recalled of the conversation. “Jane and I were both surprised, very surprised, but also very supportive of him. Our reaction was not about policy or positions. It was about him as a son and letting him know we were 110 percent supportive of him.”