Though Hindenburg originally had no interest in running for public office during the 1925 election, he was subsequently persuaded by Alfred von Tirpitz to run in the second round of the election. Had Tirpitz failed to convince Hindenburg, how different would the outcome of the runoff election be?
Is it plausible for the SPD and the Zentrum to co-support Wilhelm Marx in the second election as in OTL, but against Jarres rather than Hindenburg? If this had been the case, who would have obtained a plurality?