279 | One-Term Presidents

David talks to Helen Thompson and Gary Gerstle about the historical precedents for US presidents losing office after a single term.  It doesn't happen very often, but it could be about to happen again!  Can Trump use the powers of incumbency to prevent it?  Can Biden use Trump's growing chaos to seal his fate?  Plus we talk about the fall-out from the first presidential debate and we ask how the politics of the Supreme Court might intersect with a contested election result.