Trump failed in his attempt to defend his ban on transgender troops with, as usual, nonsensical self-praise.
His 'defense' consists of bluster and posturing with not even the hint of factual argument.
Those who have been forced to pay attention to Trump will quickly recognize this as his go-to bluster for every question he is asked:
He is great, his decisions are great, everyone loves his decisions or will love his decisions in the future, that's that, next question.
He continues to exhibit all the symptoms of a barely functional narcissist; it's not merely that he blusters about everything, all the time, but that he cannot seem to even retain more than a cursory bit of information about any topic not directly related to himself and his own falsely perceived success.