This sounds like a good Obama LIE.

The whole world knows it was Mayor Giuliani who led NY through 9/11. I didn't know who he was until then. I remember him walking the streets with New Yorkers that same day.
That's why he's often called America's mayor. The left loves taking credit for things they had nothing to do with.

Bloomberg Says In Ad He Led NYC Through 9/11. He Became Mayor Months After The Attacks

https://dailycaller.com/2020/02/19/bloomberg-9-11-ad-mayor/?fbclid=IwAR2pCFZ13q34xgnLDeYGtAyqN37QtYu0gJgSwylMgVndlEMkSWOZk4F8J3o