As the race to be the Republican Party’s presidential candidate gets underway, one figure has emerged as a particularly powerful rival to Donald J. Trump.That person, Gov. Ron DeSantis of Florida, has broken away from the pack by turning his state into a laboratory for a post-Trump version of conservatism.Guest: Patricia Mazzei, the Miami bureau chief for The New York Times.Background reading:Mr. DeSantis will soon get a chance to check off his wish list of proposals for Florida, including expanding gun rights.In his new book, “The Courage to Be Free,” Mr. DeSantis offers a template for governing.For more information on today’s episode, visit nytimes.com/thedaily. Transcripts of each episode will be made available by the next workday.