@zigguratmonk one rep per 600,000 people is still kinda crazy but that wouldn’t be an impossible change (though redistricting every state to accommodate it would be ugly). Even better would be one rep per 300,000 or even 200,000 but that would be a massive change (it likely would allow for viable third parties and would start to lesson the impact of senators on the electoral college.
But I don’t know of a serious movement to repeal the 1913 & 1929 laws - but I do think it would help the US