Sen. John McCain's inability to readily recall the number of homes he owns inspired Obama campaign strategists to create a new TV ad. The Obama campaign is also framing the comment as a damaging admission during the present US mortgage crisis.

The McCain camp swiftly responded, citing Obama's own mansion with four fireplaces in tony Hyde Park, Chicago, as well as launching a Web site, "Obama Rezko: Shady Deal."

Polls show the race tightening as the canidates enter into September.

Also:

Harvard University regains the top spot in the US News & World Report college ranking after 12 years.

Wine Spectator unknowingly gives magazine award to fictional restaurant.

Hallmark starts to roll out cards dedicated to same-sex marriage.

Airlines add fees for surfboards, further adding to the number of disgruntled consumers and bad buzz.

The FDA tries to quell consumers' worries about E. coli in spinach with new regulation.