Fed Chair Powell Says If No Fed Chair Confirmed By End Of My Term I Would Serve As Chair Pro Tem; That Is What The Law Calls For; That's What We'll Do; No Intention Of Leaving Fed Board Until DOJ Probe Is Over; Refer You To Statement In The Brief; Not Intention Of Leaving The Board Until Probe Is 'Well And Truly Over'; Have Not Made Decision If Will Stay On Board If DOJ Probe Is Over; Will Do What's Best For Fed And The People We Serve