You mean like the ones made up before every major US military intervention in the last 30 years? Some examples:

https://en.wikipedia.org/wiki/Nayirah_testimony?wprov=sfti1

https://www.theguardian.com/politics/2004/feb/25/iraq.iraqan...

https://www.nytimes.com/2005/01/21/world/middleeast/iraqi-re...