The Yalta Conference began on February 4, 1945, the day after the US and British delegations arrived from Malta. Stalin's conduct at Yalta strengthened the belief, held by some US officials, that he represented the "soft" faction in Moscow while Molotov spoke for the more militant group. Almost every account of the Yalta Conference includes discussion of Franklin D. Roosevelt's (FDR) health. FDR's and Winston S. Churchill's flirtations with the Morgenthau plan at Quebec the previous fall had long since ended. Stalin called upon Maisky to present the Soviet plan at Yalta. FDR asked that Stalin make concessions favoring the Poles, alluding to the favorable effect generosity would have on US public opinion. Stalin refused, pointing out that the line had been suggested by Lord George Curzon and Premier Georges Clemenceau. FDR believed that acceptance of an "enlarged" Warsaw government would arouse protest at home and jeopardize popular support for the United Nations.