Let's say FDR is healthier in this timeline, and lives to finish out his term. This means Truman doesn't becomes president, and the duty of handling peace time demobilization and the large amount of labor strikes that dominated Truman's first term fall to the Roosevelt administration. How does he handle them? And can he avoid Truman's fall in popularity, or was that inevitable? I feel it's likely he would be able to stop the Taft-Hartley Act. But I'm not sure how much it would changes things, as during the Cold War a bill limiting the power of unions seems unavoidable.
Going into 1948, who would secure the Democratic and Republican tickets? Would Southern Democrats still split away? I feel like if FDR gives the next candidate his blessing, his massive popularity could prevent the party split. But if he doesn't they could easily act as a spoiler to give the race to the Republicans. It's also popular that if Roosevelt's popularity plummets like Truman's did OTL, the voters would prefer a change to the Republicans either way.
Going into 1948, who would secure the Democratic and Republican tickets? Would Southern Democrats still split away? I feel like if FDR gives the next candidate his blessing, his massive popularity could prevent the party split. But if he doesn't they could easily act as a spoiler to give the race to the Republicans. It's also popular that if Roosevelt's popularity plummets like Truman's did OTL, the voters would prefer a change to the Republicans either way.