“ How was Trump bound by a pledge that he REFUSED to sign?”
Of course he refused to sign it. He was the only one it was meant for
Again you are wrong. The pledge was meant to entrap and manipulate the also rans. If they didn’t sign - they could not debate or even get some RNC campaign funds.
It was meant for Trump? Sure was. To HELP Trump.
Double Standard. Everyone else had to make a pledge. But not Trump.