FILE - In this 28, 2015 file photo, teenage environmental activists Wren Wagenbach, 14, second right, stands with her father, Mike Wagenbach, as they talk with former Seattle mayor Mike McGinn, left, before a rally in Seattle, Wash. McGinn announced on Monday, April 17, 2017, that he will challenge incumbent Seattle Mayor Ed Murray, who defeated McGinn in 2013. (AP Photo/Elaine Thompson, file)