stamina

Early-year concerns that the 81-year-old president lacked the stamina and verbal coherence to campaign for reelection had largely been quieted by his energetic State of the Union performance.

And for a campaign that had focused on Biden’s age and frailty, it is now Trump whose stamina and coherence are under the microscope.

Vice President Kamala Harris blasted former President Donald Trump for becoming “exhausted” by his campaign schedule on Friday, arguing that anyone without the stamina to run a campaign can't be an effective president.

Trump campaign spokesman Steven Cheung said in a statement Friday that Trump has “more energy and more stamina than anyone in politics, and is the smartest leader this country has ever seen.”

“So that made me feel good. Said the stress test was really good, too. I think he used the word incredible. … Said my stamina was incredible and got stronger as it got more stressed. Back in rhythm.”