Omega sent this in:

JBL won’t be going for the triple crown, he’s looking to become a Grand Slam Champion and would be the only one to accomplish the feat at Wrestlemania. The US Title isn’t recognized as a replacement for the Intercontinental Championship, similar to how the ECW Championship is not recognized as a replacement for the WWE Championship or World Heavyweight Championship.

I point out this Wikipedia article:

Charbel Ghanim? also sent this in:

Someone stated that JBL is already a Triple Crown Champion as a response to my update earlier, but according to Wikipedia’s supposedly official list of Triple Crown Champions, the U.S. title is not included in the Triple Crown. The titles that are, however, are the two main World Titles (not including ECW), the two Tag Titles, and the IC Title. That’s it.

Here’s a link for reference: