One flashpoint is the assigned speech topic for former president Bill Clinton, who is scheduled to speak Wednesday night, when the convention theme is “Securing America’s Future.” The night’s speakers will argue that Obama would be a more effective commander in chief than his Republican rival, Sen. John McCain (Ariz.).

The former president is disappointed, associates said, because he is eager to speak about the economy and more broadly about Democratic ideas — emphasizing the contrast between the Bush years and his own record in the 1990s…

Some senior Obama supporters are irritated at how they perceive the Clintons fanned — or at a minimum failed to douse — stories that she was not even vetted as a possible vice presidential nominee. This is because she told Obama she preferred not to go through the rigorous process of document production unless she was really a serious contender, an Obama associate noted.