Can a past US president run for congress or senate?

He or (hopefully) she can be appointed or elected to any federal, state or local office. As others have indicated running as a VP candidate might not be constitutionally legal, but a former VP could probably be appointed VP to serve out the term of a deceased or disgraced/reigned former VP. read more

Hence an ex-president could (in theory) run for a seat in the House of Representatives, the Senate, or for any state office such as Governor. John Quincy Adams is the only former president to have served in the House of Representatives after his presidency. Andrew Johnson is the only former president to have served in the Senate after his presidency. read more

President of the United States Additionally, one former president, John Tyler, served in the government of the Confederate States during the American Civil War. Tyler served in the Provisional Confederate Congress from 1861 to 1862. read more