Trump is not a silver-tongued career politician.No. It's obviously not impossible.
However, I think that it's hypocritical to criticize one example of Biden a gaffe (and he's not even running) being glossed over as "he really meant to say" yet never criticize the exact same type of defence for the dozens of ridiculous things trump has said. In this case it's a matter of quantity over quality since the quality is equal on both sides.
He uses metaphors, humour and exaggeration to make his points. It's his style. Some interpret that in different ways. Supporters know what he means. Non-supporters only look at the words and then lose their shit.
We should judge him on his policies in office not hang on every word he says.
For example, what specific Trump policies did you support vs not support while he was in office?