I presume he meant the original of the picture, not the joke version.
“having watched the speech that the second picture is from, I can attest that he meant it as a joke” does sound like he’s misremembering the speech as having actually included that.
“having watched the speech that the second picture is from, I can attest that he meant it as a joke” does sound like he’s misremembering the speech as having actually included that.