* Ex-Trump admin officials Stephanie Grisham and Olivia Troye
* Former Secretaries Chuck Hagel and Ray LaHood
* Former Governors Jim Edgar, Bill Weld, and Christine Todd Whitman
*Former Lt. Governor Geoff Duncan
* Ex-members of Congress Rod Chandler, Tom Coleman, Dave Emery, Wayne Gilchrest, Jim Greenwood, Adam Kinzinger, John LeBoutillier, Susan Molinari, Jack Quinn, Denver Riggleman, Claudine Schneider, Christopher Shays, Peter Smith, Alan Steelman, David Trott, and Joe Walsh
* Mesa Arizona Mayor John Giles