Something is wrong - his gait, etc for a man who's had the best medical care all his life suggests he's a bit messed up. I walked like that for a year or so going downstairs after my knee gave out, though I'd say it's his back.
Like FDR and Kennedy though he's not going to admit it particularly in light of the next campaign. You don't admit weakness.
They'll remove anything like stairs from now on. They'll make sure his bottle cap is unscrewed - I'm thinking they'll limit his long drawn out public speaking.
You got 2 old age pensioners, ( that both grew up in the 50's) battling for the presidency - both should not be anywhere near it. Trump has aged visibly over the last couple of months. Blair did, Obama - the job will kill you.