Raddatz, who serves as ABC’s chief global affairs correspondent, frequently substitutes for Stephanopoulos on the the Sunday morning public affairs show and has been a regular contributor for years.
She is expected to be anchoring the show this week, according to The NY Daily News.
The move should take some of the pressure off Stephanopolous who already works triple duty for ABC News.
Along with “This Week,” he serves as a co-host on “Good Morning America” and is the network’s chief anchor who swings into action when major national and global stories break.
She joined ABC News in January 1999 as the network’s State Department correspondent and covered the White House before being named its chief global affairs correspondent.