If the people demand it, seriously demand it, then it will be instituted. We have created and revoked amendments to the constitution. I agree it would not be easy, but Dang It, I think it should happen. I believe candidates would be better vetted and less games would go on after the primaries if they knew they could still be dropped. It would become a contest of finding and being the best candidate, rather than just mud slinging to make your opponent look worse than you. Is that really how we want to choose our leader?