Joe Lieberman of Connecticut, Daniel Akaka of Hawaii and Robert Byrd of West Virginia
Richard Bryan of Nevada, Diane Feinstein of California and Charles Robb of Virginia.
Despite that, all three races were quite close OTL. California was decided by 1.9%, Nevada by 9.8%, and Virginia by 2.7% (John Warner wasn't as popular amongst Virginia as many people think and he only consistently won re-election because the Democrats believed having a Liberal/Moderate Republican in the Senate would help them more and so consistently pushed weak candidates until 2008, when Warner wasn't on the Ballot. Why else would Wilder not have run in 1996 (I don't think anyone expected M. Warner to have gotten as close as he did) or 2002? and I think Robb was just floundering because the state was more Conservative than he was willing to be. At that point in time, at least.).Bryan: former Governor and a moderate.
Feinstein: won special election in 1992 in a landslide over the appointed Republican Senator, and would probably defeat any Republican not named Michael Huffington
Robb: won IOTL in a 3-way race (Marshall Coleman ran as an Independent with the backing of Sen. John Warner who despised Oliver North)