At his arraignment
Judge Moxila Upadhyaya asked Trump to state his full name.
“Donald J Trump — John — Donald John Trump,” Trump replied hesitantly.
When he was asked for his date of birth, and tripped over his words again. At first, he said “seven seven,” before correcting himself and saying “77”.
I think it shows that Trump is not the cool cucumber that he would have you believe he is. Cheers!