"Tommy really got into these meetings," said Errol Musk.
Musk senior noted that his familiarity with the activist developed after Robinson faced legal imprisonment in the United Kingdom.
"So I contacted Tommy, I was asked on British television once what I think of Tommy," said Errol Musk.
The incident has intensified scrutiny over the British government's ongoing operational relationship with the social media platform X.
"Elon Musk is hostile to British values and we must break our addiction to his hateful algorithm," said Liberal Democrat MP Luke Taylor.
Security analysts also expressed concern regarding how foreign actors influence domestic politics through digital platforms.
"The owner of X and friend of the president of our No 1 ally pays to send an extremist English nationalist to Russia to collude against British democracy," wrote Matthew Ford, associate professor at the Swedish Defence University.
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British police temporarily detained Robinson and confiscated his mobile devices upon his return from Moscow, where he had previously posted commentary regarding UK domestic incidents.
