Biden formally announces 2024 re-election bid; markets surge on Democratic confidence as party unity rallies behind incumbent.

Reports surface questioning Biden's fitness for second term; Democratic odds plummet as markets factor in electability doubts.

Federal indictment proceedings intensify; Democratic odds climb as markets price in potential Trump legal jeopardy affecting campaign.

Shooting at Pennsylvania rally shocks nation; Republican odds spike instantly as sympathy wave and renewed momentum converge.

President Biden withdraws and endorses VP Kamala Harris; Democratic odds rebound as markets recalibrate to new Harris-Trump matchup.

Unexpected Iowa poll shows Harris ahead; Democratic odds surge in final weekend as markets factor in potential Midwest swing.

Swing-state results roll in favoring Trump; Republican odds break past 95% and briefly touch 99% after midnight as victory becomes certain.