Official results of the 2016/2018 elections would be nice (as in, a list of winners for all Senate/House/Governor's mansions that are different in partisan officeholder to real life).
2016 results for House, Senate, and Governor are on the initial post; no candidates are changed from IRL.
2018 results for governor:
Alabama: Kay Ivey defeats Walt Maddox
Alaska: Mike Dunleavy defeats Bill Walker
Arizona: Doug Ducey defeats David Garcia
Arkansas: Asa Hutchinson defeats Jared Henderson
California: Gavin Newsom defeats John Cox
Colorado: Jared Polis defeats Walker Stapleton
Connecticut: Erin Stewart defeats Ned Lamont
Florida: Ron DeSantis defeats Philip Levine
Georgia: Brian Kemp defeats Stacey Abrams
Hawaii: Colleen Hanabusa defeats Andria Tupola
Idaho: Brad Little defeats Paulette Jordan
Illinois: JB Pritzker defeats Bruce Rauner
Iowa: Terry Branstad defeats Cathy Glasson
Kansas: Kris Kobach defeats Laura Kelly
Maine: Mark Eves defeats Mary Mayhew
Maryland: Larry Hogan defeats Ben Jealous
Massachusetts: Charlie Baker defeats Jay Gonzalez
Michigan: Gretchen Whitmer defeats Bill Schuette
Minnesota: Lori Swanson defeats Tim Pawlenty
Nevada: Steve Sisolak defeats Adam Laxalt
Nebraska: Pete Ricketts defeats Bob Krist
New Hampshire: Jeanie Forester defeats Colin Van Ostern
New Mexico: Hector Balderas defeats Steve Pearce
New York: Andrew Cuomo defeats Marcus Molinaro
Ohio: Mary Taylor defeats Joe Schiavoni
Oklahoma: Mick Cornett defeats Drew Edmondson
Oregon: Kate Brown defeats Knute Buehler
Pennsylvania: Tom Wolf defeats Paul Mango
Rhode Island: Alan Fung defeats Gina Raimondo
South Carolina: Catherine Templeton defeats James Smith
South Dakota: Kristi Noem defeats Billie Sutton
Tennessee: Beth Harwell defeats Karl Dean
Texas: Greg Abbott defeats Lupe Valdez
Vermont: Phil Scott defeats Christine Hallquist
Wisconsin: Scott Walker defeats Kelda Roys
Wyoming: Mark Gordon defeats Mary Throne
For Senate:
Arizona: Krysten Sinema defeats Kelli Ward (Jeff Flake lost the primary)
California: Dianne Feinstein defeats Kevin de Leon
Connecticut: Chris Murphy defeats Dominic Rapini
Delaware: Tom Carper defeats Gene Truono
Florida: Rick Scott defeats Bill Nelson
Hawaii: Mazie Hirono defeats Thomas Edward White
Indiana: Mike Braun defeats Joe Donnelly
Maine: Angus King defeats Eric Braley and Zak Ringelstein
Maryland: Ben Cardin defeats Tony Campbell
Massachusetts: Elizabeth Warren defeats Geoff Diehl
Michigan: Debbie Stabenow defeats John James
Minnesota: Amy Klobuchar defeats Jim Newberger
Minnesota-Special: Tina Smith defeats Karin Housley
Mississippi: Roger Wicker defeats David Baria
Mississippi-Special: Chris McDaniel defeats Mike Espy
Missouri: Josh Hawley defeats Claire McCaskill
Montana: Tim Fox defeats Jon Tester
Nebraska: Deb Fischer defeats Jane Raybould
Nevada: Jacky Rosen defeats Dean Heller
New Jersey: Bob Menendez defeats Bob Hugin
New Mexico: Martin Heinrich defeats Aubrey Dunn Jr. (Libertarian)
New York: Kirsten Gillibrand defeats Chele Farley
North Dakota: Kevin Cramer defeats Heidi Heitkamp
Ohio: Sherrod Brown defeats Jim Renacci
Pennsylvania: Bob Casey defeats Lou Barletta
Rhode Island: Sheldon Whitehouse defeats Robert Flanders
Tennessee: Bob Corker defeats James Mackler
Texas: Ted Cruz defeats Beto O'Rourke
Utah: Mitt Romney defeats Jenny Wilson
Vermont: Bernie Sanders reelected without major opposition
Virginia: Tim Kaine defeats Corey Stewart
Washington: Maria Cantwell defeats Susan Hutchinson
West Virginia: Evan Jenkins defeats Joe Manchin
Wisconsin: Tammy Baldwin defeats Sean Duffy
Wyoming: John Barrasso defeats Gary Trauner