Able to serve? / Herbert Brownell -- Revisiting the Twenty-Fifth Amendment / Mortimer Caplin -- Political perspectives on the Twenty-Fifth Amendment and succession / Manley Caldwell Butler -- A review of the commission report / Chalmers M. Roberts -- The presidential physician and the Reagan presidency / T. Burton Smith -- Presidential disability and the nuclear age / Mortimer Caplin -- Presidential disability and physician-patient confidentiality / Leonard J. Emmerglick -- Concluding observations / Kenneth W. Thompson.