FDR dies, the democratic party has a brutal and contentious primary that results in Huey Long getting the nomination. The republicans right remains impossibly divided, allowing Lafollete to win over the republican liberals and moderates. What is left of the progressive parties endorse Lafollete who runs under a duel Republican/Progressive ticket. Given longs "special" brand of populism much of the democratic base defects to Lafollete who wins a narrow election.