NBC Newsman, Tom Brokaw, Faces Sexual Harassment Allegations

PHILADELPHIA (CBS) --  Longtime NBC Newsman Tom Brokaw has withdrawn as commencement speaker for Sacred Heart University amid sexual harassment allegations.

Linda Vester, a former NBC colleague, alleges Brokaw made unwanted advances toward her in the 1990's.

Brokaw denies the allegations and calls Vester a "character assassin."

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He referred to her statements to the media as a "drive by shooting."

Small business administrator Linda McMahon is replacing Brokaw, as Sacred Heart's commencement speaker.