Democratic nominee suggests at Michigan rally that rival does not have stamina to handle another presidential term

Kamala Harris used a rally in Grand Rapids, Michigan, on Friday to seize on reports that Donald Trump had been canceling media interviews to question whether he has the stamina for a second presidency if voters choose him over her in November’s election.

“If he can’t handle the rigors of the campaign trail, is he fit to do the job?” the Democratic vice-president, 59, told rallygoers about the 78-year-old Trump.