You keep mentioning Curz having submitted his intended speech in advance, as if that pushed any blame off on Trump.
The petulant child revealed to the Trump team he refused to endorse. What was Trump supposed to do, refuse him the opportunity to address Anerica?
Who was the bigger man in that situation? It sir wasn’t Tead Curz.
When given the oportunity to endorse Trump and bring all his supporters with him, Curz refused.
To hell with the nation, point made. FAIL!
Trump made a speech which you say put the nation in peril. In making speech Ted Cruz is blameworthy.
Donald Trump had the power to stop the speech which would have saved the nation being put in peril but he is not blameworthy for failing to do so.
Is it the peril that changed or your standard which changed with the individual?