Carolyn Reidy, the chief executive of Simon & Schuster, said in an interview that e-books currently made up about 8 percent of the company's book revenue.
But one focus of Mr. Bush's offensive, Senator Tim Johnson, Democrat of South Dakota, said in an interview that, e-mail messages or not, he still had reservations about the president's approach.
"You mentioned in your E! interview that when someone has an office job, 'You know you can do all the stuff in the morning,' and that hit the nail on the head.
Another expert, Jonathan Rottenberg at the University of South Florida, cited research in an e-mail interview that suggests "people generally have a greater capability for complex, mixed emotional states in adulthood".
Dr. Bradley confirmed in an interview that the e-mail was his, but said his comment had no bearing on whether global warming was really happening.
Mr. O'Rourke, the Morgan Stanley spokesman, said in an interview that the e-mail message was sent "in response to clients who had sent letters saying they were concerned" about Mr. Clinton's speech.
Pham Thanh Duc, CEO of M-Service — the company behind Momo — told TechCrunch in an interview that its e-wallet is designed to a universal payment platform.
William H. Foege, the agency's director at the time, said in an interview Wednesday that "Ed Brandt continually fought on the inside" to reduce the number of staff and budget cuts.
"I can't believe Rick sent that e-mail," Mr. Scully said in an interview.
But at the Grammys on Sunday, two of the night's biggest stars lit up the red carpet with interviews that were anything but boring, leaving E!'s Giuliana Rancic at a loss for words.
