US politics in a Nazis Win TL

The coming of war to America changed but did not destroy the peace issue. Many of those who had stubbornly resisted involvement now hoped to terminate it as quickly as possible, and apparently only a lack of organization significantly differentiated sentiment for a negotiated peace from the isolationism of 1941. Moreover, as the President quickly learned, the leadership for an effective negotiated peace movement seemed likely to emerge from the die-hard remnants of the America First Committee, particularly in the person of the isolationist national hero, Charles A. Lindbergh.​
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America First officially disbanded in February, and many of its officials announced their support for the war effort. Nevertheless, the activities of some members, including Lindbergh, remained the subject of government interest and concern. In mid-February Federal Bureau of Investigation Director J. Edgar Hoover informed the President that former members of the Committee had "gone underground" and were "biding their time," awaiting the opportunity to emerge again as a "political force." Hoover cited as evidence a mid-December meeting at which the renowned flyer had allegedly held forth on the yellow and Bolshevik menaces, on the foolishness of the current war in Europe, and on what might be done to reverse American policy. ​
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According to Hoover's informant, Lindbergh declared that "when the American people, by reason of the lists of the missing and the statements of war losses, realize that they have been betrayed by the British and the Administration," the Committee should be ready to "advocate a negotiated peace." Hoover also noted that he had obtained information from other sources to the effect that the America Firsters had a "secret mailing list of 8,476,000"; that lately a "great many individuals among foreign speaking groups have been circularized"; and that the leaders of the underground organization planned to hold a "series of house parties . .. to keep alive contacts."34​

Nevertheless, the President could not rest easy, for the fate of the extremists notwithstanding, he had reason to ponder the possibility that his more respectable political enemies might use the peace issue to unsettle and embarrass the administration. In April OFF warned that in the fall congressional campaigns "subversion will probably be intermingled with politics" as both administration opponents and Nazi propagandists seek to "promote defeatism or play upon the war weariness of the people." Fleshing out this prediction was a report informing the President that three leading isolationist Republicans, Congressman Joe Martin, former Congressman Bruce Barton, and publisher Roy Howard, had "just held a secret meeting in far off Tucson," leading to speculation that they were planning an "isolationist attack" against administration war policies. A more explicit warning came to Roosevelt from a friend, New Dealer Gardiner Jackson, who told him in the fall of 1942 that the business interests behind the presidential candidacy of Thomas E. Dewey were working hard for a negotiated peace and had taken a recent conciliatory speech by Hitler as the "opening gun of the drive to call the war off. . . ." The problem raised by these reports (if true) was, as OFF warned, that even if the agitation of the peace issue could not force the administration into negotiations, it could do "much damage" by strengthening "the hand of those in Congress whose main goal is the harassment and obstruction of the President."37