As kindly provided by Gizmodo:
The Turds Who Are Up For Re-election in 2018 and Would Appreciate a Phone Call
Mississippi: Roger Wicker
Nebraska: Deb Fischer
Nevada: Dean Heller
Texas: Ted Cruz
Wyoming: John Barrasso
The Turds Who Are Retiring Like Cowards
Arizona: Jeff Flake
Tennessee: Bob Corker
Utah: Orrin Hatch
The Turds Who Are Up For Re-election in 2020 and Would Really Benefit From a Sternly Worded Letter
Alaska: Dan Sullivan
Arkansas: Tom Cotton
Colorado: Cory Gardner
Georgia: David Perdue
Idaho: James E. Risch
Iowa: Joni Ernst
Kansas: Pat Roberts
Kentucky: Mitch McConnell
Louisiana: Bill Cassidy
Mississippi: Cindy Hyde-Smith
Montana: Steve Daines
Nebraska: Ben Sasse
North Carolina: Thom Tillis
Oklahoma: Jim Inhofe
South Carolina: Lindsey Graham
South Dakota: Mike Rounds
Tennessee: Lamar Alexander
Texas: John Cornyn
West Virginia: Shelley Moore Capito
Wyoming: Mike Enzi
The Turds Who Are Up For Reelection in 2022 and Would Rather You Not Set a Reminder Right This Second
Alabama: Richard Shelby
Arkansas: John Boozman
Florida: Marco Rubio
Georgia: Johnny Isakson
Idaho: Mike Crapo
Indiana: Todd Young
Iowa: Chuck Grassley
Kansas: Jerry Moran
Kentucky: Rand Paul
Missouri: Roy Blunt
North Carolina: Richard Burr
North Dakota: John Hoeven
Ohio: Rob Portman
Oklahoma: James Lankford
Pennsylvania: Pat Toomey
South Carolina: Tim Scott
South Dakota: John Thune
Utah: Mike Lee
Wisconsin: Ron Johnson