I did some research. Downstate Illinois are fed up with being overrepresented by Chicago, and want to separate and form a new state.
The problem for them is, they won't be able to win in IL legislature, which is dominated by Chicago/Dems.
Now I see GA following the same trend, and will inevitable be dominated by Dems in Atlanta. I am wondering if they can achieve this, when they still control the state. I know it's extremely hard, and needs to be approved by congress, but probably worth trying for them.
The difference between Maine rule GA as discussed here
https://talkelections.org/FORUM/index.php?topic=437530.0is that, while Maine rule benefits the party but not necessary those politicians, becoming a new state directly benefits them. Since they can become governors and senators, as compared to being marginalized by Dems in Atlanta, just like Rs in VA and CO.