Article continues below advertisementBefore Joe Biden dropped out of the 2024 election, his camp arranged several speaking engagements for him in 2025. However, all but five appearances were reportedly canceled for the former president, who revealed his cancer diagnosis in May.In March, Biden, 82, presented at the National High School Model United Nations. The next month, he spoke at the national conference of Advocates, Counselors and Representatives for the Disabled as well as at the Harvard Institute of Politics.