NEW: Missouri voters are set to decide on a proposed constitutional amendment requiring drawing legislative districts on basis of "1 person, 1 vote," which could lead to redistricting based on # of citizens old enough to vote rather than of all residents
http://www.senate.mo.gov/20info/BTS_Web/Bill.aspx?SessionType=R&BillID=26838179

2. Trump admin has directed the Census Bureau to produce citizenship data based on government records that would allow for this redistricting by eligible voters, which a GOP strategist said would be "advantageous to Republicans & Non-Hispanic Whites" https://www.npr.org/2019/09/11/759510775/trump-wants-citizenship-data-released-but-states-havent-asked-census-for-it

3. If you're wondering if it's legal to draw voting districts based on number of eligible voters rather than of all residents, the U.S. Supreme Court left that an open question back in 2016. From Justice #RBG's majority opinion in Evenwel v. Abbott
https://supreme.justia.com/cases/federal/us/578/14-940/#tab-opinion-3553740

4. The proposed #SJR38 constitutional amendment is set to be on the ballot for Missouri's general election on Nov. 3.