Trump calls Elon Musk by wrong name as his biographer says the candidate is 'hyper-aware' voters are doubting his mental acuity

• Donald Trump mistakenly called Elon Musk by the wrong name at a rally on Saturday.
• The former president referred to the SpaceX CEO as "Leon" during a speech in Wisconsin.
• Trump's former biographer said he was "hyper-aware" of people catching his apparent mental lapses.

Former president Donald Trump mistakenly called Elon Musk by the wrong name at a rally in Wisconsin on Saturday.

The former president referred to Musk as "Leon" while praising the SpaceX CEO over his plan to bring two stranded astronauts back from the International Space Station.