Whakaotihia te rerenga e whai ake nei: I te tau 2008, ka riro a Díaz hei perehitini o te U.S. Conference of Mayors. I a ia e noho takitahi ana, ā, he kaitōrangapū rēhita o mua, i kōrero a Diaz i te Huihuinga ā-Motu ā-Tōrangapū o te tau 2008 me te tautoko i
Ko te tono perehitini a Obama. Whai muri i te pooti a Obama, i whakaarohia a Diaz mo te Hekeretari o te HHS; ka riro te tuunga ki a Kathleen Sebelius.