Waxad qortaa sii wadida faqradan - Kadib markii uu ka baxay tartanka, Vilsack wuxuu taageeray Senator Hillary Clinton doorashada madaxtinimada Maarso 25, 2007. wuxuu rajaynayay in uu ku soo kordhiyo Iowa. Guddoomiyihii hore wuxuu tilmaamay Clinton inuu yahay musharaxa leh "fikradaha ugu fiican, tamarta ugu badan, iyo qiyamka iyo aragtida hoggaaminta dalkeena". Wax yar ka dib markii la ansixiyay, Clinton waxay u magacowday xaaska Vilsack Christie inay tahay guddoomiye ku xigeenka ololeheeda Iowa. Ololaha Clinton ayaa ku dhawaaqay inay Vilsack ka caawin doonaan bixinta $400,000 oo deyn ah. Vilsack wuxuu u ololeeyay Clinton waddanka oo dhan isagoo ahaa gudoomiyaha ololaha qaranka, wuxuuna diirada saaray inuu ka caawiyo inay ku guuleysato caucuses-ka Iowa. Inkastoo uu dadaal badan muujiyay, Clinton ayaa kaalinta saddexaad ka galay tartanka doorashooyinka, isaga oo ka dambeeyay Barack Obama iyo John Edwards.
15kii Luulyo, 2008. Wuxuu ku tilmaamay Obama " musharaxa kaliya " ee codbixiyayaasha " ee ka soo horjeeda xisbiyada " si ay u beddelaan " codka Washington "