Trump doesn't need a defense of any kind unless a real and credible charge emerges. So far, we have a phone transcript with Trump and Zelenskyy discussing corruption and an anonymous whistle-blower raising concerns based on 2nd and 3rd-hand conversations. If the impeachment process gets to the point where there are articles of impeachment and a clear cause of action, then Trump can think about defense. But so far, the Dems are swinging in all directions, seeing if they've got a noodle that might stick. Adam Schiff's theatrical performance yesterday was a step backward.