Ann Romney to Be a \'Good Morning America\' Co-Host

By BILL CARTER

Already on a roll in the morning, ABC's “Good Morning America” has booked Ann Romney as a guest co-host for the Oct. 10 edition of the program.

Mrs. Romney was booked before this week's debate, so it was not a case of ABC's looking to follow up on positive reaction to her husband's performance. ABC has been booking celebrity guests to fill in for its co-anchor Robin Roberts, who is on medical leave.

Other names who have agreed to fill in include Oprah Winfrey, Jessica Simpson and Barbara Walters. Stephen Colbert appeared on the show this week. An ABC executive confirmed speculation that the show was in talks with Michelle Obama to serve as co-host on a future date.

Mrs. Romney will appear as the guest host alongside George Stephanopoulos in the show's second hour, starting at 8 a.m.

“G.M.A.” has taken command of the morning ratings over the longtime leader, the “Today” show on NBC. On Thursday, AB C reported that “G.M.A.” won the first week of the new television season for the first time in 20 years. The win was a big one, with “G.M.A.” defeating “Today” by 808,000 viewers.