Churchill took up the matter with Roosevelt when they met at the Washington Conference on 25 May 1943. A meeting was arranged that afternoon between Cherwell and Bush in Hopkins's office in the White House, with Hopkins looking on. Both stated their respective positions, and Cherwell explained that Britain's post-war interest was in nuclear weapons, and not commercial opportunities. Hopkins reported back to Roosevelt, and Churchill and Roosevelt agreed that information interchange should be reviewed, and that the atomic bomb project should be a joint one. Hopkins sent Churchill a telegram confirming this on 17 June, but American policy did not change, largely because Roosevelt did not inform Bush when they next met on 24 June. When Churchill pressed for action in a telegram on 9 July, Hopkins counselled Roosevelt that "you made a firm commitment to Churchill in regard to this when he was here and there is nothing to do but go through with it."