In OTL, Joe Lieberman was number one on Al Gore's list of running mates but his only clearance for choosing him was that John McCain did not win the Republican nomination in 2000. Had McCain beaten Bush in 2000, who would have been Al Gore's alternative and potentially, an even better running mate? According to research I did about Al Gore's list of running mates it included: Tom Harkin, Evan Bayh, Barbara Boxer, John Edwards, Dianne Feinstein, Barbara Mikulski, Dick Gephardt, Bob Graham, Jim Hunt, John Kerry, Bob Kerrey, Zell Miller, George Mitchell, Sam Nunn, and Jeanne Shaheen.