Jonathan Cahn is an author not a prophet. He dies an excellent job with historical patterns that actually happened.
If I recall correctly, he himself said that nothing might happen. He also never made a prediction, against what Scripture says, that the Lord would return on such-and-such a date.
I believe the Lord has revealed things to and through him, including the message that He was sending through 9/11 as it connects to Isaiah 9. His identification of the Clintons as Ahab and Jezebel figures has always seemed the truth.