Fewer than 1 in 10 (9%) Americans have a great deal of confidence in Trump to confirm vaccine effectiveness with another 18% reporting only a "good amount" of confidence in the poll conducted by Ipsos in partnership with ABC News using Ipsos' Knowledge Panel. In contrast, 69% don't have confidence in the president vouching for a vaccine, including 16% saying "not so much" and 53% saying "none at all."