Norwegian Dawn. Credit: Darryl Brooks/Shutterstock.com Norwegian Dawn. Credit: Darryl Brooks/Shutterstock.com

A federal judge has temporarily blocked a Florida law that prevents cruise lines from requiring passengers to prove they're vaccinated against COVID-19, saying the law appears unconstitutional and won't likely hold up in court.

The "vaccine passport" ban signed into law in May by Republican Gov. Ron DeSantis fails to protect medical privacy or prevent discrimination against unvaccinated people, but it does appear to violate the First Amendment rights of Norwegian Cruise Lines, U.S. District Judge Kathleen Williams wrote.