Pres. Trump: Mueller Deputy Shouldn't Be Allowed At Hearing; CNN: Pres. Trump More Irritated Than Anxious Ahead Of Testimony; Pres. Trump Talks "Witch Hunt" Ahead Of Mueller Testimony; Sources: He Keeps Asking What To Expect From Hearings; House Judiciary Dems Hold Mock Mueller Hearing Ahead Of Testimony By Former Special Counsel; Former Special Counsel To Have Deputy Join Him At Hearing; Mueller Makes Requests To Sear n Deputy For Hearing; Source: Deputy Will Advise Mueller, Won't Answer Questions; House Intelligence Committee To Focus On Obstruction Of Justice; CNN: Pres. Trump Quizzing People Around Hin About What To Expect From Hearings; Former Top Lawyer At FBI On Mueller's Testimony; FBI Director Wray: Mueller Is 'Professional", "Straight Shooter"; Help Is (Finally) On The Way; 9/11 Victims Bill Faces Senate Vote; 9/11 Victims Bill Passes Senate, Heads To White House