Former Gov. Mike Huckabee (R-Ark.) is defending Donald Trump from calls for the GOP front-runner to release his tax returns. "Never help someone load a gun when it's pointed at your own head," he advised Trump on Fox Business Network's "Cavuto Coast to Coast" on Thursday. "You're going to find that it never ends well. "Why do we have a right to see somebody's tax returns if they have given us what the government requires?" Huckabee asked host Neil Cavuto. "To make it the single qualification to be president, I find to be absurd."