Link: https://www.rt.com/usa/508751-biden-vaccine-mandate-americans/
Biden told ABC News’ George Stephanopoulos in October that he wouldn’t rule out a vaccine mandate, saying it would depend on “the state of the nature of the vaccine when it comes out and how it's being distributed,” at the time he acknowledged such a rule would be difficult to enforce.
Though he repeatedly endorsed the idea throughout the campaign season, calling on President Donald Trump in August to “institute a mask mandate nationwide, starting immediately,” he has since backed away from that stance, instead urging state and local officials to impose the measures themselves.