NEW YORK —  Gwen Ifill has a broken ankle, but she'll still serve as the upcoming vice presidential debate's moderator.

The veteran PBS newswoman tripped in her Washington area home while walking downstairs Monday, carrying material she was using to prep for the debate between Joe Biden and Sarah Palin.

Despite the pain, doctors have given her the OK to travel to St. Louis, where the vice presidential debate is scheduled for Thursday.

"Another crazy twist in a crazy week," Ifill said, confirming her injury in an e-mail.

Ifill is moderator of PBS' "Washington Week" and senior correspondent on "The NewsHour."

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