Debate stages have long doubled as presidential burial grounds. With a few sharp lines, an acid quip, or just a well-timed nod, the candidates can do more to unravel their opponents than in a hundred speeches or television commercials.
Evacuations and curfews have been enacted in parts of Iowa and Wisconsin as flood threats from swollen rivers and creeks continue to cause panic.
As well as a legendary golf swing, Arnold Palmer had a sharp mind for business.
Hillary Clinton and Donald Trump face off for the first time on the debate stage Monday night, the biggest moment of the already extraordinary 2016 presidential race.