Jenna Bush Hager announced on the 'Today' show this morning that she is pregnant with her second daughter with Henry Hager.

Jenna's  first daughter, Mila, who turns 2 on April 13, helped her mom announce the upcoming arrival of her "little sissy" in a home video aired on the talk show. 

Mila's new "little sissy" will be the second grandchild of Jenna's parents - former President George W. Bush and former First Lady Laura Bush. 

Watch the announcement here:

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