Democratic presidential candidate Barack Obama waves while speaking in front of the Siegessaeule at the Grosser Stern in Tiergarten on July 24, 2008 in Berlin, Germany. (Photo by Carsten Koall/Getty Images)
President, U.S. Senate, Congress, and the Minnesota House of Representatives are the major races in the campaign of 2008. This is the first presidential election without an incumbent or sitting vice president involved since 1952.
Who's number 2?
The media and Democratic party supporters are eagerly anticipating Barack Obama's vice presidential pick. Midmorning looks at the options, and what kind of message Obama's selection will send.
Julian Zelizer: Professor of history and public affairs at Princeton University.
Michael Hagen: Associate professor of political science, Temple University.