Technically it's Liberal-Left-Socialism. Most people consfuse them and use left and Liberal interchangeably. AOC and the modern Dem Party/Leaders are Leftist Socialists, while the moderates (what Biden was supposed to be) aren't in favor of this path. It's the classic Loud Minority (leftists and socialists) and Silent Majority (liberals, moderates, conservatives who oppose the Socialist Leftist crap)