One of the key issues in 2024’s presidential election cycle is age. I was reminded of this when writing on recent polling that asked respondents whether the two frontrunners have the requisite mental, cognitive, and physical health to serve as president through 2028. (Not that I needed to be reminded — both Joe Biden and Donald Trump are already set to be the oldest major party nominees ever, and Biden, in particular, demonstrates on virtually a daily basis that he’s more than lost a step.)