As Sanders explained in a 2006 interview with Democracy Now!:

I think [democratic socialism] means the government has got to play a very important role in making sure that as a right of citizenship all of our people have healthcare; that as a right, all of our kids, regardless of income, have quality childcare, are able to go to college without going deeply into debt; that it means we do not allow large corporations and moneyed interests to destroy our environment; that we create a government in which it is not dominated by big money interest. I mean, to me, it means democracy, frankly. That’s all it means.

But the Vermont senator himself is loose with his terminology, as he has praised the “long social-democratic tradition” of Nordic countries as examples of how the United States should operate as a nation. For instance, points to Finland's universal healthcare, free childcare, parental leave benefits, free higher education, low income inequality, and overwhelming unionization of workers. And sometimes he does indeed refer to himself, simply, as "a socialist."

So perhaps it's better to consider his policies themselves. Sanders wants a level playing field, where everyone born in America actually has the same opportunity for success, instead of "a government of the billionaires, by the billionaires and for the billionaires," as he puts it. He rails against the influence of the Koch brothers and other wealthy political donors and corporations on both Republicans on Democrats, ensuring that the rich stay rich and making sure the working class remain exactly that. While many Democrats claim to be in favor of leveling the playing field, few use the rhetoric Sanders does. He has suggested things like breaking up the largest banks and frequently refers to the United States as an oligarchy.

Writing earlier this year on the "fear-mongering" over Sanders' politics, Penn Spectrum columnist Larry Liu noted the "confusion in America what socialism really is":