Subject: Re: 51st thru 60th States
When you address those 2 questions it is easy to see why we are stuck at 435.
Since 1912? Even the admission of AK and HI didn't increase the number, and that was 70 years ago. In all that time, control of Congress has switched between both parties numerous times (both before the Southern Dems left to become Reps, and after). So I don't think any one party is trying to control the EC by keeping it at 435. At least not for the entirety of the past 113 years. That wouldn't make sense because the parties have shifted so much in that time.
So I'm not sure what you're getting at.
I actually thought it might be a function of the size of the chamber; that they couldn't fit more desks inside that fixed space. Just a guess, but it makes more sense than trying to swing the EC for the past 113 years.