Sept. 22 (Bloomberg) — Edward Lazear, a professor at Stanford University in California and former economic adviser to President George W. Bush, talks with Bloomberg’s Julie Hyman and Mark Crumpton about the prospects for a new White House chief of staff. Rahm Emanuel, President Barack Obama’s chief of staff, is likely to leave before the November congressional elections to run for mayor of Chicago, people familiar with the matter said. (Source: Bloomberg)