Bernie is not a Socialist, he is a SOCIAL DEMOCRAT!

[Excited Penguin]

He is a socialist, though. He just happens to be a "democratic socialist". See below why I'm justified in using the quotation marks.
Socialism

The socialist political movement includes a diverse array of political philosophies that originated amid the revolutionary movements of the mid-to-late 1700s out of general concern for the social problems that were associated with capitalism.[10] In addition to the debate over markets and planning, the varieties of socialism differ in their form of social ownership, how management is to be organized within productive institutions, and the role of the state in constructing socialism.[2][10] Core dichotomies associated with these concerns include reformism versus revolutionary socialism, and state socialism versus libertarian socialism. Socialist politics has been both centralist and decentralized; internationalist and nationalist in orientation; organized through political parties and opposed to party politics; at times overlapping with trade unions and at other times independent of, and critical of, unions; and present in both industrialized and developing countries.[26] While all tendencies of socialism consider themselves democratic, the term "democratic socialism" is often used to highlight its advocates' high value for democratic processes and political systems and usually to draw contrast to other socialist tendencies they may perceive to be undemocratic in their approach.