Ironically, FDR pulled a Biden but succeeded. By early 1944 he was already dying of cancer and hid it, as he hid his disability. He made it through the election

Ironically, FDR pulled a Biden but succeeded. By early 1944 he was already dying of cancer and hid it, as he hid his disability. He made it through the election, and then died a few months after his inauguration leaving Truman in charge. Of course, FDR was more popular than Biden, but I do believe it was his closest election.