Mezue ahịrịokwu na-esonụ: Rivkin jere ozi dị ka onye nnọchi anya California maka Senator John Kerry na 2004 Democratic National Convention na Barack Obama na 2008 Democratic National Convention. Rivkin bụ California ego co-isi oche maka Obama si
Mgbasa ozi onyeisiala nke afọ 2008 na otu n'ime ndị na-enweta ego ya.