Court-packing is perfectly legal, as the Constitution allows Congress to set the number of justices (an error by the Founders, IMO).
FDR considered it in 1937. But his plan was not popular, and went nowhere.
Well, it’s not 1937 anymore. If the Democrats try it again, the mainstream media would applaud. And 50% of the country would applaud. So it sure could happen.
As much disdain as we may have for Manchin, he is the only reason they didn’t do it a year ago. The rats had their commission seated and had the Judges picked but Manchin stopped it by saving the filibuster. DC and PR would be states also. I fear he just bought us a few years.