Former Trump administration lawyer Ty Cobb has claimed President Donald Trump's apparent cognitive decline is now visible in his late-night social media posts and public behaviour.
Cobb, who represented the White House during Robert Mueller's investigation into Russian interference in the 2016 US presidential election, said Trump's narcissism had lost what he called 'its frontal lobe restraints.' He also described the president's condition as a 'frontal lobe illness,' although the source contains no independent medical assessment to support that claim.