Ben Shapiro has his five.  Mine are:

40.  Franklin Pierce-Proof that a good man can be a terrible president.  Loving husband and father, his only son died before his parent’s eyes in a train wreck shortly before Pierce was sworn in as president, and an able and brave volunteer general in the Mexican War, Pierce as president was a complete disaster.  His policy of appeasing the slave holders of the South enraged the North.  Pierce vigorously enforced the Fugitive Slave Law, and attempted unsuccessfully, to have Kansas admitted to the Union as a slave state.  Passions over slavery built throughout his administration and Pierce, through his Doughface, a name applied to Northern politicians with Southern sympathies, policies did nothing to tamp them down.

41.  Jimmy Carter-The second worst president of my life time.  His economic policies helped drive both inflation and interest rates to record-setting levels.  His energy policy consisted mainly of sweaters and advising people to turn down thermostats.  His manifest weakness encouraged Soviet adventurism.  (His reaction when the Soviets invaded Afghanistan was to exclaim that Brezhnev, the Soviet Premier, had lied to him.)  The impotence of him and his administration was best symbolized by the botched attempt to rescue our diplomats held hostage by the Iranians.  A kidney stone of a presidency.

42.  Barack Obama-He found the nation in a fiscal disaster and made it worse.  No president had ever been as feckless when it comes to piling up debt until Covid and the current administration.  We will be generations cleaning up after him.  His contraception mandate demonstrated the complete contempt he has both for the Constitution and American liberties.  By far the worst president in my lifetime until Biden.

43.  James Buchanan-There is little to be said in favor of the worst president to sit in the White House.  His policies of attempting to appease the South helped encourage an ever-growing movement towards secession during his term.  During the secession crisis following the election of Lincoln, Buchanan dithered and convinced the South that the “cowardly Yankees” as typified by Buchanan, would never fight to preserve the Union.  James Buchanan by his malfeasance and nonfeasance in office did more than any other man to bring about the Civil War.

I would slip Biden in there, probably between Obama and Buchanan.  Our first President manifestly suffering from dementia, he has presided over reignited inflation, a bug out from Afghanistan that destroyed American prestige, and the use of lawfare against political opponents great and small.  His ongoing attempt to jail Trump is probably his most ominous legacy as Presidents going forward will fear that losing an election may well mean prison for them.  With Biden, an utterly corrupt and ridiculous figure, I fear that we may be hearing the first notes of the death-knell of the Republic.