Kammala wannan jumla: A 1968 Branigin ya sami kulawar ƙasa lokacin da ya yi takara a matsayin mai tsayawa ga Lyndon B. Johnson a cikin zaben shugaban kasa na Indiana. Johnson ya fice daga tseren a ranar 31 ga Maris, 1968, amma Branigin ya ci gaba da yin takara a matsayin dan takarar da aka fi so da Robert F. Kennedy da Eugene McCarthy. Branigin ya yi fatan kokarinsa zai sami matsayi mafi girma ga Indiana a
Babban taron jam'iyyar Democrat na shekarar 1968 a Chicago. Branigin ya gama na biyu a cikin na farko zuwa Kennedy.