What's a doable socialist agenda at the City Council level? Health insurance?

Goldy (blogger at The Stranger) attacks Matthew Yglesias (blogger at Slate) for supposedly Congratulating Himself for Not Being as Socialist as Kshama Sawant

Goldy can be extremely interesting. Yglesias almost always is and to boot has a good sensibility and knowledge about city planning.

But my point: a commenter made the following remark directed to yet another commenter. Tracking?

@23 

"You should be promoting an actual doable agenda and holding her to that, rather than taking up crucial bandwidth defending her idiotic fantasies about implementing world socialism from a Seattle council seat."

My response:

Yup. Well said. 

So what is a "doable agenda"? I'd like to hear about what -- if anything -- the City can do in the area of health care for ALL citizens of Seattle. 

Can the City of Seattle, through its buying power, can help lower the cost of group health insurance?

It already has 10,000 or so employees covered by health insurance and so it has staff who know the health care delivery systems and how to purchase it etc etc

What could the City do in using its expertise and buying power in the area of health care?

I will be the first to say that I know nothing about health insurance except that I have it and I like it.  But there has to be some way that the City of Seattle, as a robust institution, can do something. If it could be then health insurance for all Seattleites would be a useful element in -- if you want to call it that -- a "socialist agenda."