Just out of curiosity. Once that pledge was made, did everyone take it to mean regardless of the future circumstances the other candidates were bound by it? If Trump had said he planned to only recognize certain parts of the Constitution, and other candidates pulled their support, would you be upset with them because they broke their pledge?
Lets be honest, no one on that stage was willing to recognize the Constitution in its entirety. So yes, I would still take issue.
Don't sign a LOYALTY PLEDGE if you don't wish to be placed in that situation. If values mean more than your loyalty, the pledge is NOT FOR YOU!