So, it is pretty clear from last night that he is mentally diminished. He simply does not have the capacity to be the commander in chief. Now that itself does not necessarily mean he needs to be gone, Plenty of presidents have been inadequate. The problem here is that his staff seems unwilling or unable to massage and iron out his inadequacies.
Also I love the clever wordplay. In the excerpt Trump read, which was no doubt what was written from him, he simply condemned hatred and violence. This allows the listener to fill in the rest. It's when he ad libs "many" sides where things go hay wire.
Can't stop himself.
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