One of the most interesting things in this trial was the testimony of the president's good friend, the former Senator from Arkansas. He did his persuasive best to maintain the confusion that this is all about sex. You will find charges of perjury and obstruction of justice which are public acts and federal crimes, especially when committed by the one person duty bound to faithfully execute the laws.
Infidelity is private and non-criminal.
Perjury and obstruction are public and criminal. The deliberate focus on what is not an issue here is the defense lawyer's tactic and nothing more. This entire saga has been a theater of distraction and misdirection. Time on the defense tactics when the law and facts get in the way. There is a visibility factor in the president's public acts, and those which betray a trust or reveal contempt for the law are hard to sweep under the rug, or under the bed for that matter.