Nyorera kupfuurira kweiyi ndima - Pakupera kwa2007, Kennedy nehanzvadzi dzake Kerry naKathleen vakazivisa kuti vaizotsigira Hillary Clinton musarudzo dzomutungamiri wenyika dzeDemocratic Party dza2008. Pashure peDemocratic Convention
, Kennedy akaita mushandirapamwe waObama munyika yose. Pashure pesarudzo, akanzi ndiye aizotungamirira pakutsvaka mutariri weEPA waObama.