Tesla CEO Elon Musk has backed former president Donald Trump for a 'landslide victory' if he is handcuffed and arrested by the Manhattan DA on Tuesday.

Trump claims he will be arrested on Tuesday over claims he paid porn star Stormy Daniels to keep quiet about their alleged affair.

Last week the former president and 2024 hopeful was invited to testify before a Manhattan grand jury, with his long-time fixer and former lawyer Michael Cohen testifying on Monday.

He claimed on his Truth Social account that the Manhattan DA's office will arrest him within days and branded the probe 'corrupt and highly political', calling the alleged hush money payment an 'old and fully debunked fairy-tale.'

Many have been questioning if they will see the 76-year-old former president in handcuffs – with Musk wading into the row by saying he will be re-elected.