April: Biden agrees to debate Trump in a Howard Stern interview, despite allies' concerns.
May 15: Biden's team arranges two debates with CNN, first set for June 27.
June 4-27: Biden's extensive travel schedule leaves him exhausted.
June 21: Biden heads to Camp David for intensive debate preparation.
June 27: Biden performs poorly in the debate against Trump, appearing tired and incoherent.
June 27: Biden's team reveals he has a cold during the debate.
June 28: Immediate fallout as media and allies express concerns over Biden's performance.
July 2: Calls for Biden to step down intensify; Rep. Lloyd Doggett breaks ranks.
July 2: Jim Clyburn suggests Kamala Harris and a potential "mini-primary."
July 5: Biden's interview with Stephanopoulos fails to quell dissent.
July 9-12: NATO summit gaffes; Biden confuses names of key leaders.
July 13: Trump is shot during a rally, galvanising Republican support.
Mid-July: Biden contracts COVID-19, isolating and contemplating the campaign's future.
July 21: Biden ends reelection campaign following strategic missteps and health concerns.
