Ask PolitiFact: What is independent state legislature theory, and could it create election chaos? - PolitiFact

If the justices fully backed the doctrine, state courts could no longer apply state constitutions to adjudicate partisan gerrymandering claims involving congressional districts, said Bertrall Ross, a University of Virginia law professor. That would likely lead to more extreme gerrymandering, he said. Also, the most extreme reading of the theory could jeopardize voter-approved changes to state election laws, such as Michigan voters' approval of no-excuse absentee voting, Alaska's adoption of ranked choice voting and Nevada's adoption of automatic voter registration…

https://www.politifact.com/article/2022/dec/05/ask-politifact-what-independent-state-legislature/