He's got a tiger by the ears now. He doesn't like it, and he can't let go. If he tries to stop the "demonstrations", he will lose his liberal chops, and won't be able to go to the next "Leftist Mayors" dinner. If he doesn't, he will be a former mayor, perhaps before the inauguration.
These riots are bleeding the downtown businesses, already in trouble because of all the beggars and metal cases you have to walk around, the derelict camps on every piece of open grass. These days, you are screwed tight if you have a full bladder around Pioneer Square, for lack of public bathrooms.
Portland actually has one of the few active walkaround downtown shopping districts in the United States. Macy's, Brooks Bros, Nike, REI, upscale restaurants like Ruth's Chris. These thugs are spoiling all that, screwing up the light rail and bus system, whose nexus is right there, jamming up the interstates for an already painful evening commute. Portland is a blue island in a red state, that has, so far, been able to enforce it's dictatorship over the rest of the state. We'll see how it lasts.
Any reason besides political parties as to why Mayor Hale encouraged anti-Trump protests?