DRA stuff

[muon2]

Utah new

District 1 (Blue): R+26.4
District 2 (Green): D+4.6
District 3 (Purple): R+25.5
District 4 (Red): R+33.5

I wanted to create a single district out of the rural areas of the state, which are currently divided between all 4, and gerrymandered to favor the Republicans. I also created a D-leaning district out of Salt Lake, Davis, and Summit counties.

This would also put Reps. Rob Bishop and Chris Stewart in a primary against each other for the new 1st district. Mia Love would be able to run in the 4th, and John Curtis in the 3rd. The 2nd wouldn't have an incumbent.

Is the Summit part of 4 connected to the rest of the CD? It's certainly contiguous, but it would be unfortunate if they were only contiguous over a mountain range with no passes there. Box Elder has a similar problem in that there's nothing but dirt trails to connect it with Tooele to the south.

[Dr. MB]

Ungerrymandered South Carolina

1st District (Blue): 48.5% Obama, 50.2% McCain
2nd District (Green): 36.8% Obama, 62.0% McCain
3rd District (Purple): 32.9% Obama, 65.3% McCain
4th District (Red): 39.6% Obama, 59.0% McCain
5th District (Yellow): 56.7% Obama, 42.3% McCain
6th District (Turquoise): 51.7% Obama, 47.3% McCain
7th District (Gray): 47.4% Obama, 51.5% McCain

In practice, we have 3 solid R districts, 1 solid D district, and 3 swing districts. Certainly better than the current situation.

Under the new districts here would be the incumbents:
1st District: Mark Sanford
2nd District: Joe Wilson, Jeff Duncan
3rd District: Trey Gowdy
4th District: Ralph Norman
5th District: Jim Clyburn
6th District: No incumbent
7th District: Tom Rice

[Dr. MB]

Utah new

District 1 (Blue): R+26.4
District 2 (Green): D+4.6
District 3 (Purple): R+25.5
District 4 (Red): R+33.5

I wanted to create a single district out of the rural areas of the state, which are currently divided between all 4, and gerrymandered to favor the Republicans. I also created a D-leaning district out of Salt Lake, Davis, and Summit counties.

This would also put Reps. Rob Bishop and Chris Stewart in a primary against each other for the new 1st district. Mia Love would be able to run in the 4th, and John Curtis in the 3rd. The 2nd wouldn't have an incumbent.

Is the Summit part of 4 connected to the rest of the CD? It's certainly contiguous, but it would be unfortunate if they were only contiguous over a mountain range with no passes there. Box Elder has a similar problem in that there's nothing but dirt trails to connect it with Tooele to the south.

Yeah, there's interstate 80.

[muon2]

Utah new

District 1 (Blue): R+26.4
District 2 (Green): D+4.6
District 3 (Purple): R+25.5
District 4 (Red): R+33.5

I wanted to create a single district out of the rural areas of the state, which are currently divided between all 4, and gerrymandered to favor the Republicans. I also created a D-leaning district out of Salt Lake, Davis, and Summit counties.

This would also put Reps. Rob Bishop and Chris Stewart in a primary against each other for the new 1st district. Mia Love would be able to run in the 4th, and John Curtis in the 3rd. The 2nd wouldn't have an incumbent.

Is the Summit part of 4 connected to the rest of the CD? It's certainly contiguous, but it would be unfortunate if they were only contiguous over a mountain range with no passes there. Box Elder has a similar problem in that there's nothing but dirt trails to connect it with Tooele to the south.

Yeah, there's interstate 80.

I mean it looks like you can't drive to the I-80 part of CD 4 in Summit county without driving through CD 2. Some states require that it is convenient to get to all parts of a district without going through other districts. It's a good neutral redistricting principal that can cut down on certain types of gerrymanders.

[Dr. MB]

Utah new

District 1 (Blue): R+26.4
District 2 (Green): D+4.6
District 3 (Purple): R+25.5
District 4 (Red): R+33.5

I wanted to create a single district out of the rural areas of the state, which are currently divided between all 4, and gerrymandered to favor the Republicans. I also created a D-leaning district out of Salt Lake, Davis, and Summit counties.

This would also put Reps. Rob Bishop and Chris Stewart in a primary against each other for the new 1st district. Mia Love would be able to run in the 4th, and John Curtis in the 3rd. The 2nd wouldn't have an incumbent.

Is the Summit part of 4 connected to the rest of the CD? It's certainly contiguous, but it would be unfortunate if they were only contiguous over a mountain range with no passes there. Box Elder has a similar problem in that there's nothing but dirt trails to connect it with Tooele to the south.

Yeah, there's interstate 80.

I mean it looks like you can't drive to the I-80 part of CD 4 in Summit county without driving through CD 2. Some states require that it is convenient to get to all parts of a district without going through other districts. It's a good neutral redistricting principal that can cut down on certain types of gerrymanders.

Oh, for some reason I thought you meant CD2. Well, you can take State Road 32, which barely goes through CD2 for some parts.

[muon2]

I mean it looks like you can't drive to the I-80 part of CD 4 in Summit county without driving through CD 2. Some states require that it is convenient to get to all parts of a district without going through other districts. It's a good neutral redistricting principal that can cut down on certain types of gerrymanders.

Oh, for some reason I thought you meant CD2. Well, you can take State Road 32, which barely goes through CD2 for some parts.

We've had lots of thread debates about whether a brief cut into another district disqualifies. We've looked at formulas to define how much is too much in the other district. In the end, my conclusion is that if you split a county the pieces should be reachable from their respective districts without cutting any length into another district.

[President Punxsutawney Phil]

The issue would be fixed easily by putting all of Summit County in the Dem district and shifting some of its most conservative areas in CD 3, then evening out the population of CDs 3 and 4.

[Dr. MB]

Here's a new Tennessee

District 1 (Blue): R+28.2, current R+28
District 2 (Green): R+19.1, current R+20
District 3 (Purple): R+19.3, current R+18
District 4 (Red): R+24.0, current R+20
District 5 (Yellow): D+4.5, current D+7
District 6 (Turquoise): R+20.5, current R+24
District 7 (Gray): R+20.5, current R+20
District 8 (Light Purple): R+16.2, current R+19
District 9 (Light Blue): D+22.4, current D+28

[muon2]

Here's a new Tennessee

District 1 (Blue): R+28.2, current R+28
District 2 (Green): R+19.1, current R+20
District 3 (Purple): R+19.3, current R+18
District 4 (Red): R+24.0, current R+20
District 5 (Yellow): D+4.5, current D+7
District 6 (Turquoise): R+20.5, current R+24
District 7 (Gray): R+20.5, current R+20
District 8 (Light Purple): R+16.2, current R+19
District 9 (Light Blue): D+22.4, current D+28

Out of curiosity, why chop both Hamblen and Hawkins between CD 1 and 2? It's always possible to replace it with one chop in one of those two counties. The same question applies to CD 4 and 6, between 4 and 7, and between 7 and 8.

[President Punxsutawney Phil]

Here's a new Tennessee

District 1 (Blue): R+28.2, current R+28
District 2 (Green): R+19.1, current R+20
District 3 (Purple): R+19.3, current R+18
District 4 (Red): R+24.0, current R+20
District 5 (Yellow): D+4.5, current D+7
District 6 (Turquoise): R+20.5, current R+24
District 7 (Gray): R+20.5, current R+20
District 8 (Light Purple): R+16.2, current R+19
District 9 (Light Blue): D+22.4, current D+28

Out of curiosity, why chop both Hamblen and Hawkins between CD 1 and 2? It's always possible to replace it with one chop in one of those two counties. The same question applies to CD 4 and 6, between 4 and 7, and between 7 and 8.

[Del Tachi]

Metro ATL Democratic Gerrymander



4 solidly Democratic districts, a Lean/Tilt D district, and a D opportunity district.

District 1 - PVI D+13.75, 53.9% White, 64.5% Obama.  A dream of mine come true:  a solidly Democratic district dominated by ITP Whites.  Includes Buckhead, Midtown, parts of Downtown, East Atlanta and most of DeKalb County.  DeKalb actually holds the bulk of population here, not Fulton.  Safe Democrat, but more likely to elect a moderate, Hillary type - Mary Norwood or Alex Wan would be perfect here.

District 2 - PVI D+23, 62.6% Black, 71.5% Obama.  The most Democratic district on the map, CD-2 is dominated by Black suburbs in DeKalb County and the fast-growing, diverse exurbs of Rockdale and Newton County.  This is probably the wealthiest majority-Black district in the country.  No portions of the city of Atlanta are in this district.  Hank Johnson would probably run in this district.

District 3 - PVI D+10.43, 47.4% Black, 59.5% Obama.  Anchored by Clayton County, this district includes most of Hartsfield-Jackson airport, South Atlanta, and the diverse exurbs of Henry County.  It also includes Fayette and Spalding counties, which are pretty Republican at the moment, but will continue to grow and diversify as well.  While the District is only 47% Black, total non-White population is over 60% and it is continuing to get more diverse.  This is the most likely seat for John Lewis.   

District 4 - PVI D+24.79, 60.5% Black, 73.4% Obama  The successor to David Scott's district, the new 4th is dominated by West Atlanta, the Black suburbs of Douglas County, and some minority and White liberal areas in South Cobb and around Marietta.  Safe Democrat and heavily African-American, but interestingly Stacey Evans lives in this district.

District 5 - PVI R+9.48, 66.3% White, 60.0% McCain.    The most Republican of the new districts, this is largely a successor to the current GA-06.  This District includes the suburbs of former Milton County, some of the wealthiest areas of the Metro around Vinings in Cobb, and fast-growing exurbs in outer-Cobb communities like Kennesaw and Acworth.  Lean R, but could be a Democratic opportunity district.

District 6 - PVI R+2.11, 49.2% White, 53.1% McCain.  Despite the R+2.11 PVI, I'm going to call this a Tilt D district (its under 50% White, quickly diversifying, and probably had a D PVI in 2016).  Captures most of the White areas in Gwinnett County and then snakes along SR-316 to Athens.  I'd like to see John Barrow make a comeback in this district (he lives in Athens now).   

 

[Del Tachi]

Full Georgia redraw.  Cobb and DeKalb each get  their own district.  2 Safe Dem seats (9 and 11), a likely D seat (5), two Lean D seats (4 and and a tossup seat in Cobb (5).  District 1 and 2 are less than R+10, District 6 is roughly R+11. 

[Dr. MB]

A practically even Virginia with hardly any gerrymandering

District 1: R+6.2
District 2: D+12.8
District 3: EVEN (R+0.2)
District 4: D+10.5
District 5: R+13.1
District 6: R+13.0
District 7: R+2.9
District 8: D+21.3
District 9: R+19.9
District 10: D+8.0
District 11: D+8.6

[Dr. MB]

District 1: D+4
District 2: D+2
District 3: R+9
District 4: D+13
District 5: R+20
District 6: D+12
District 7: R+11
District 8: R+12
District 9: R+13
District 10: R+17
District 11: R+9
District 12: D+18
District 13: D+2

[AustralianSwingVoter]

Map of current 2012/2016 PVI data available (Green of course being available and Red being currently unavailable).

[America Needs a 13-6 Progressive SCOTUS]

PVI data is available for Iowa.

[AustralianSwingVoter]

PVI data is available for Iowa.

I shall change my map forthwith.

[AustralianSwingVoter]

Updated map

[President Punxsutawney Phil]

Is it possible doing DRA on Android devices?

[America Needs a 13-6 Progressive SCOTUS]

Maine with 2 districts of similar PVI.

Blue: D+1.22
Red: D+3.74

Only Cumberland County is split.

Population difference of 667 people.

[America Needs a 13-6 Progressive SCOTUS]

I took the Daily Kos map and changed the 2 Eastern District Borders to put all of the Cedar Rapids Metro Area in a single District.

[Dr. MB]

District 1 (Green): R+1
District 2 (Blue): D+1

[Dr. MB]

Map of Kansas with 2 swing districts (I tried to do 2 D districts but it was impossible).

District 1 (White): R+26
District 2 (Purple): R+21
District 3 (Green): R+3
District 4 (Blue): D+1

[America Needs a 13-6 Progressive SCOTUS]

No Counties Split; Max Deviation 1000; West Iowa Intact; Des Moines Metro Intact; Iowa Districts



Blue: D+1.7
Green: R+14.36
Red: D+4.46
Yellow: R+3.02

I could have made the Red and Yellow Districts much neater looking by splitting even a single County.

[muon2]

No Counties Split; Max Deviation 1000; West Iowa Intact; Des Moines Metro Intact; Iowa Districts



Blue: D+1.7
Green: R+14.36
Red: D+4.46
Yellow: R+3.02

I could have made the Red and Yellow Districts much neater looking by splitting even a single County.

IA has 4 districts, 99 counties, and no county larger than a CD. Mathematically one expects that a whole county division based on those stats should have a range of less than 100 between the largest and smallest CD. The enacted IA plan was within that limit with deviations of -41, +35, +23, and -18. It would be hard to have the court support a plan that had a significantly larger range unless it was decidedly more compact.