Rubuta ci gaba ga wannan sakin layi - A ƙarshen 2007, Kennedy da 'yan uwansa mata Kerry da Kathleen sun sanar cewa za su goyi bayan Hillary Clinton a cikin zaben shugaban kasa na Jam'iyyar Democrat na 2008. Bayan Yarjejeniyar Demokradiyya
, Kennedy ya yi yakin neman zaben Obama a duk fadin kasar. Bayan zaben, an sanya shi a matsayin mai jagorantar mai kula da EPA na Obama.