I'd argue the Democrats as a whole are actually a right of center party, not a liberal or progressive one.
The new Landslide podcast on NPR lays out how this came to be and nevermind the publisher, it's a great listen. Highly recommended.
But no matter how progressive Bernie claims to be and AOC claims to be and no matter that they're definitely to the left, no elected Federal official I'm aware of is far left in the United States.
And Bernie, if he was, isn't even a Democrat anyway.