https://davesredistricting.org/join/eea2c1e2-ba6d-4844-8f44-8cf4d9f730d9Here's what a fair map of Oregon could look like, assuming that no partisan considerations are made.
1st District (West Portland Burbs): Clinton +22.1, D+9.09
2nd District (Eastern Oregon and Medford/Ashland): Trump +16.7, R+9.93
3rd District (Portland proper): Clinton +63.2, D+31.86
4th District (Eugene and Southern Oregon): Trump +5.4, R+2.6
5th District (South and East Portland Burbs, rural Marion County): Clinton +1.1, R+1.16
6th District (Willamette Valley, Central Coast): Trump +0.2, R+0.6
Under this map, Democrats get badly shafted - both DeFazio and Schrader's districts move right, and while they should be fine, the 4th is probably gone for Democrats after DeFazio retires. While the ORGOP is incompetent, they can't be ruled out in a district as swingy as the 6th (and would be mildly favored there in a Biden midterm). In a bad year for Dems, a 2-4 map is
possible (though unlikely given Clackamas County's leftward trend - also, Woodburn is zooming left) - though conversely a 5-1 is also possible until DeFazio hangs it up.
In terms of mapping, I'm mostly satisfied with the decisions made here, though Gresham and Salem both get slightly cut under this map. Another option (with little partisan effect) is to move more of Marion back into the 6th in exchange for Yamhill County, though that makes the 5th district more awkward. If Democrats want to draw a quasi-fair map that leans towards them, they could move Ashland and bluer parts of Medford into the 4th in exchange for titanium-R Central Point and White City (potentially Grants Pass as well), and/or have the 5th district take bluer areas out of Multnomah in lieu of Gresham (e.g. Hillsdale or Woodstock).
