What happens when Trump testifies

AP "reviewed hundreds of pages of depositions taken of Trump in the past decade":

• "The transcripts reveal a witness who is by turns voluble, giving expansive answers far beyond the questions asked; boastful, using unrelated queries to expound on his wealth or popularity; unapologetic, swift to defend incendiary comments or criticized actions; and occasionally combative, once deriding a lawyer for 'very stupid' questions."
• Why it matters: "The garrulous style belies the 'just the facts, ma’am' approach many defense lawyers advocate."