The Democratic Strategist.

From the description on the website:

We are launching this publication because we believe Democrats must begin to develop political strategies that look beyond the standard two- and four-year time horizons set by the American electoral calendar. Democrats must develop a set of concrete and coherent political strategies for regularly winning elections and over the longer term - perhaps over a decade or more - winning new areas of support and creating nothing less than a stable Democratic majority in the country.

I'm always looking for venues for debate within the Democratic party, and this goes on my list of DLC resources to the right. I urge you to read some of the articles - this one especially expands on this theme of long-term strategy and thinking critically about policy.