Saying that the CPUSA president voted for a Bernie is a lazy attempt to make him guilty by association. A candidate does not control who votes for them. Despite that, as far as socialist organizations go, despite their name they are one of the most moderate and reformist.

Among the points in the party's "Immediate Program" are a $15/hour minimum wage for all workers, national universal health care, and opposition to privatization of Social Security. Economic measures such as increased taxes on "the rich and corporations", "strong regulation" of the financial industry, "regulation and public ownership of utilities", and increased federal aid to cities and states; opposition to the Iraq War and other military interventions; opposition to free trade treaties such as the North American Free Trade Agreement (NAFTA); nuclear disarmament and a reduced military budget; various civil rights provisions; campaign finance reform including public financing of campaigns; and election law reform, including Instant Runoff Voting.[58]

The Communist Party USA emphasizes a vision of socialism as an extension of American democracy. Seeking to "build socialism in the United States based on the revolutionary traditions and struggles" of American history, the CPUSA promotes a conception of "Bill of Rights Socialism" that will "guarantee all the freedoms we have won over centuries of struggle, and also extend the Bill of Rights to include freedom from unemployment"– as well as freedom "from poverty, from illiteracy, and from discrimination and oppression".[59]

They are not a revolutionary organization, and they don't want to create a DPRK in America. They're basically just a left wing party.