Question: Why would Trump want to have a debate with loser Cruz?
Well, there this...
"...and finally, that truth is great and will prevail if left to herself, that she is the proper and sufficient antagonist to error, and has nothing to fear from the conflict, unless by human interposition disarmed of her natural weapons, free argument and debate, errors ceasing to be dangerous when it is permitted freely to contradict them. ""I HAVE SWORN UPON THE ALTAR OF GOD ETERNAL HOSTILITY TO EVERY FORM OF TYRANNY OVER THE MIND OF MAN"
--Thomas Jefferson, 1786https://www.google.com/webhp?#q=truth%20is%20great%20and%20will%20prevail%20if%20left%20to%20herself
...but what did Thomas Jefferson and America's founders know about the mortgage bidness and building brothels in Moscow anyhow.