Despite David's application has not still political data for Oregon, and would be very interesting to have it since a democratic point (after Illinois, of course), I find the limits for a democratic Gerrymander redistricting of Oregon.
In Oregon, the democrats get really close to win the trifecta this time. We have a tie between democrats and republicans in the state house. But if I'm not wrong, if the state legislature fail drawing the maps, the issue go to the Secretary of State, what is democrat too.
I know not all the details, but it seems Oregon can give the chance of some improvement for the democrats.
Habitually I take as safe districts for the democrats the district with 58-59% Obama (D+5/6). The republicans only win IL-10 (D+6) over D+4 in all the country in 2010 wave, but Oregon is just 57% Obama (D+4) and that mean we can not up all the districts until D+5.
Despite that, Oregon have currently two districts under D+5 in democratic hands, and the democrats from the state are able for keep both despite the republican wave and with Schrader as freshman in OR-05 (D+1), then, I think we can take as safe D+4 districts for Oregon. To up 4 districts until D+5 would mean to have the last district with EVEN rating, and this seems worse since a democratic point.
The democratic Gerrymander of Oregon finding the limits is so easy geographically, and need a lot less county split than in the current map.
OR-01: D Wu (D) (Blue)
- 57% Obama D+4 (estimate)
It is the most democratic of the districts by little difference.
OR-02: G Walden (R) (Green)
- 57% Obama D+4 (estimate)
The part of the district inside Multnomah County need to have only the average of the county (77% Obama). G Walden would have harder work for keep the district than in his current R+10 (what is so close geographically).
OR-03: E Blumenauer (D) (Magenta)
- 57% Obama D+4 (estimate)
The part of the district inside Multnomah County need again to have only the average of the county (77% Obama).
OR-04: P DeFazio (D) (red)
- 57% Obama D+4
Need not to go inside Multnomah County. DeFazio get safer than in the current D+2.
OR-05: K Schrader (D) (yellow)
- 57% Obama D+4
A lot more compact than the current district. Schrader get safer than in the current D+1.
Multnomah County has currently three districts inside. I think it would be not a big trouble to have four.