Pennsylvania primary After more than a month of criss-crossing the Keystone state, Barack Obama and Hillary Clinton are headed for one more primary vote. Analysts view this latest contest as a test of Clinton's support among blue collar voters.9:06 a.m.
Julian Zelizer: professor of history and public affairs at Princeton University.
Larry Eichel: senior writer for the Philadelphia Inquirer.
David Barker: associate professor of political science at the University of Pittsburgh.
Behind the urge to buy Overall, the frugal outnumber the spenders according to recent research. That's not true of people aged 21 - 30, who are spending beyond their means. Midmorning examines the research and the mindset behind the trend to spend.10:06 a.m.
Scott Rick: is an author of the study "Tightwads and Spendthrifts." He is a professor in the department of operations and information Management at The Wharton School at the University of Pennsylvania.
Larry Compeau: professor of Marketing Clarkson University School of Business.