Hamilton Fish, brother of Portland City Commissioner Nick Fish, resigned his post as president and publisher of The New Republic Friday, amid allegations of sexual harassment.

The announcement came from the owner of the magazine, Win McCormick, who said the investigation into Fish's behavior would continue to move forward. About a week ago, a group of women at The New Republic confronted management with a list of complaints about Fish's behavior.

In his resignation letter, which was first obtained by The New York Times, Fish acknowledged the complaints of women working at the publication.

"Women have longstanding and profound concerns with respect to their treatment in the workplace," he wrote. "Many men have a lot to learn in this regard. I know I do, and I hope for and encourage that new direction. Still, it's my sense that our office culture has been harmed, and the best way for me to help the organization move past this is by withdrawing."

The resignation has at least two Portland connections. Hamilton Fish is the brother of City Commissioner Nick Fish. Win McCormack, the magazine's owner, is a longtime local publishing executive and Oregon's leading Democratic political donor.

McCormack bought The New Republic last year. McCormack, editor and publisher of Portland's Tin House magazine and books, earlier published the Oregon Magazine and has published Oregon Business, Travel Oregon and other local publications.

Commissioner Nick Fish declined to comment on his brother's resignation.