First, she is the most commanding figure, other than Bernie Sanders, in the progressive wing of the Democratic Party. Selecting Warren would add the kind of star power to the Democratic ticket that would greatly enhance the historic nature of Clinton's candidacy. At the same time, given Becerra's resume, he would also confirm the impression that the Democratic ticket is one with governing experience. His work as governor of Iowa and as the U.S. secretary of agriculture would add to the long resume of the Democratic ticket. Coming from an immigrant family, he could also make sure that the high levels of immigrant voting anticipated for the Clinton ticket come to fruition.
Source: CNN July 03, 2016 22:52 UTC