Did Trump Walk Back on "Bush Lied"?

RUSH: Now, if Trump is walking it back, there goes my theory. Why walk it back if you're trying to attract Democrat crossover votes tomorrow in the South Carolina primary? Maybe you think you've already done it and you've succeeded. You got your message out. You can make a show and play at walking it back here to maintain your Republican vote. I still could be right about this, is the bottom line.