US president Joe Biden expected to formally announce re-election bid on Tuesday

Were he be successfully re-elected, Mr Biden would be 86-years-old by the end of his second term

US president Joe Biden. Were he to be successful,

US president Joe Biden is expected to formally announce is bid for re-election in 2024 tomorrow.

Biden, who is now 80 years old, was already the oldest president when he defeated Donald Trump to become president in 2020.