New Delhi, Sept. 11 -- Former Vice President Kamala Harris acknowledged that Joe Biden often appeared "tired" during his presidency but rejected claims of a conspiracy to cover up his decline. The remarks come from an excerpt of her upcoming memoir, 107 Days, published by The Atlantic on Wednesday.

"Many people want to spin up a narrative of some big conspiracy at the White House to hide Joe Biden's infirmity," Harris wrote. "Here is the truth as I lived it. Joe Biden was a smart guy with long experience and deep conviction, able to discharge the duties of president."

Harris stressed that even on difficult days, Biden was "more deeply knowledgeable, more capable of exercising judgment, and far more compassionate than Donald Trump on his...