[Ans] Who alerted President George W. Bush that America was under attack on 9/11?

Step 1 : Introduction to the question "Who alerted President George W. Bush that America was under attack on 9/11?"

Former White House Chief of Staff Andrew Card was famously the man who broke the news of the September 11 attacks to President George W. Bush. On the morning of September 11, 2001, around 9:10 a.m., Andrew Card approached Bush as he was visiting Emma E. Booker Elementary School in Sarasota, Florida, and whispered in his ear the news that a second plane had hit the World Trade Center, confirming that a terrorist attack was underway. Card later recounted his story, saying that he whispered "A second plane has hit the second tower. America is under attack."

[Answer] Who alerted President George W. Bush that America was under attack on 9/11?

Step 1 : Introduction to the question "Who alerted President George W. Bush that America was under attack on 9/11?"

...Former White House Chief of Staff Andrew Card was famously the man who broke the news of the September 11 attacks to President George W. Bush. On the morning of September 11, 2001, around 9:10 a.m., Andrew Card approached Bush as he was visiting Emma E. Booker Elementary School in Sarasota, Florida, and whispered in his ear the news that a second plane had hit the World Trade Center, confirming that a terrorist attack was underway. Card later recounted his story, saying that he whispered "A second plane has hit the second tower. America is under attack."