If I remember my political science correctly, a communist is one who believes in *international* socialism directed by and subservient to the Russian Communist Party. Since no such party exists, there aren’t really communists by the original definition.
However, this is not to dismiss both Clinton and Sanders’ dangerous political views. They are both Fabian Socialists who believe in incremental nationalization of the means of production. All they are fighting over is now fast or slow that incrementalism should be implemented.
Communists believe in international socialism, that’s true. They believe in communizing every country.
They used to be directed by the Soviet Communist Party in the old days. Another faction )the Progressive Labor Party) was led by the Chinese Communist party. Then there were the Trotskyites (the Socialist Workers Party.) Commies all. Just different factions of Communist.
They’re still out there.