evidence: Former President Donald Trump often seems proud to advertise his administration's record on speedily developing COVID-19 vaccines. On the campaign trail to win another term in the White House, though, he also has knocked the use of those very vaccines. In October, for example, he unleashed a barrage of social media attacks on Ron DeSantis' pandemic record by reposting claims that the Florida governor — who is running against him in the Republican presidential primaries — was too active in vaccinating Sunshine State residents. [...] Though he initially encouraged people to get vaccinated in early 2021, DeSantis pivoted months later, banning vaccine passports for businesses and government entities, and later approving legislation prohibiting vaccine mandates in the state. That fall, he also appointed a new Florida surgeon general, physician Joseph Ladapo, whose guidance on COVID vaccines contradicts CDC recommendations. DeSantis formed a Public Health Integrity Committee to assess, and generally dispute, federal health recommendations.