One area in particular where Mr. Obama is adding muscle is a team that is tasked with tracking down rumors and erroneous statements circulated on the Internet.
“The growth of the Internet, which has been a fabulous asset for helping to build the Obama community, is also a place where erroneous e-mails live,” said Anita Dunn, a senior campaign adviser. “That’s a challenge I don’t think previous campaigns have had to deal with to the extent that the Obama campaign has.”

