BEVERLY HILLS -- Katie Couric Thursday told TV writers here that she has invited both presidential candidates to appear on her new talk show bowing in September and (in response to a question) also an ex-candidate: Sarah Palin.
No response on whether she'll appear or not, Couric said.
Meanwhile, she said she'll likely sub on "Good Morning America" for a week or so when Robin Roberts goes on medical leave in late August or early September. ABC News president Ben Sherwood Thursday said Barbara Walters, Diane Sawyer, Kelly Ripa and "The View" hosts also offered to substitute. Roberts -- who will undergo a bone-marrow transplant that will keep her off the air for an undetermined period -- said via closed circuit Thursday that she "goes through moments of fatigue" but that "GMA's" recent wins over "Today" had "truly energized" her.
Couric called her new show "a work in progress -- at times a single topic show, at other times two topics . . . or sometimes three [while] talking about things as varied as the impact on relationships of children and aging parents."