In the USA, both the candidates for the presidency are making gaffes. Both have done so before, but Biden is looking more frail than Trump when he does so.
Personally, I think that Trump is going to win the elections this year. His attack adds work, and Biden is doing himself few favours. If Nikki Haley was standing, the outcome would be even more certain, but when have Americans chosen the best person for the job of leading them?
Trump for some reason mixed up Obama with Biden.
For the record, the husband of Nikki Haley is serving in the military.
There are loads of others, but these are two of the more recent and memorable ones.