Arizona: Martha McSally (R)
California: Dianne Feinstein (D)
Connecticut: Matthew Corey (R)
Delaware: Tom Carper (D)
Florida: Rick Scott (R)
Hawaii: Ron Curtis (R)
Indiana: Mike Braun (R)
Maine: Eric Brakey (R)
Maryland: Ben Cardin (D)
Massachusetts: Geoff Diehl (R)
Michigan: John James (R)
Minnesota: Amy Klobuchar (D)
Minnesota-Special: Karin Housley (R)
Mississippi: Roger Wicker (R)
Mississippi-Special: Cindy Hyde-Smith (R)
Missouri: Josh Hawley (R)
Montana: Matt Rosendale (R)
Nebraska: Deb Fischer (R)
Nevada: Dean Heller (R)
New Jersey: Bob Hugin (R)
New Mexico: Gary Johnson (L)
New York: Chele Farley (R)
North Dakota: Kevin Kramer (R)
Ohio: Jim Renacci (R)
Pennsylvania: Lou Barletta (R)
Rhode Island: Robert Flanders (R)
Tennessee: Phil Bredesen (D)
Texas: Ted Cruz (R)
Utah: Mitt Romney (R)
Vermont: Bernie Sanders (I)
Virginia: Tim Kaine (D)
Washington: Susan Hutchinson (R)
West Virginia: Joe Manchin (D)
Wisconsin: Leah Vukmir (R)
Wyoming: John Barrasso (R)
UPDATE:
Connecticut:
Dominic Rapini (R) --->
Matthew Corey (R)
Hawaii: No Endorsement --->
Ron Curtis (R)
Massachusetts:
John Kingston III (R) --->
Geoff Diehl (R)
New Mexico:
Martin Heinrich (D) --->
Gary Johnson (L)
Rhode Island: No Endorsement --->
Robert Flanders (R)
Washington: No Endorsement --->
Susan Hutchinson (R)
