"The D.S.A.’s rise is at once a story of party-blobification and of a revolt against it. Like the conservatives of the 1970s..."

"... the group frankly views the party it occupies as a host for an ideological movement rather than as a partner. It also practices an exaggerated form of the interest-group litmus-test politics that came to dominate Democratic politics in the post-1968 era, measuring its own strength less by general-election victories than by its ability to enforce candidate loyalty to left-maximalist positions.... It is a means of engaging seriously in Democratic Party politics while also casting a vote of no-confidence in the party itself...."

From "Is Anyone Actually in Charge of the Democratic Party? And Does It Matter? This year’s midterm elections are a test of whether a party can be a success and a failure at the same time" (NYT).