WATCH: Biden book details 'very generous' letter from Trump
In his upcoming memoir, "Promise Me, America," former President Joe Biden reflects on a letter his predecessor, President Donald Trump, left him in the Oval Office in 2021.

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WATCH: Biden book details 'very generous' letter from Trump (opens ABC News in a new tab)
In his upcoming memoir, "Promise Me, America," former President Joe Biden reflects on a letter his predecessor, President Donald Trump, left him in the Oval Office in 2021.


