New York Times: “The testimony will push Mr. Trump far outside his comfort zone of social media and the rally stage, where he is a master of mockery, a no-holds barred flamethrower who relishes most opportunities to attack foes. He leveraged that persona during his days as a tabloid businessman and fixture of New York’s tabloids and found that it worked just as well in the 2016 presidential race. He has since taken control of the Republican Party, and his style has become a defining influence in contemporary politics.”
“The witness stand is a different venue. It’s a seat that requires care and control, where lying is a crime and emotional outbursts can land you in contempt of court. Another risk during his time on the stand: Mr. Trump, 77, has been showing signs of strain and age on the campaign trail, mixing up the names of foreign leaders and at one point confusing which city he was in.”