Not population no, but every single usa politician on national level is a liberal. EPA was founded by nixon who is also a lib.
Of course they are, jesus christ.
You think internal infighting between libs who want to skate on global rent extraction and worker exploitation vs liberals who want to exploit workers and planet is some important distinguishing fight? Who increased oil production then by permitting it everywhere? Was it supreme court maybe? Obama was fairly proud of that achievement as i recall.
From 70s onwards usa economy is static piece of shit, here, show me on this graph where liberals are not in power:

Or i should refer to stock market, the true economy, not this useless household income figure right?
You may say republicans slash taxes and doing starving the beast, but somehow dems are never resurrecting those taxes. There is some sort of mechanism as i recall, which allows the gear to go on way, but stops the other way, if only there was a name to that effect.