Governor Ron DeSantis is actively preparing a run for president in 2024, even as he delays a formal announcement to keep Republican voters’ attention on his aggressively conservative record in Florida, according to people familiar with the plans. Behind the scenes, DeSantis and his tight-knit team of advisers are interviewing national consultants to work on a presidential campaign. A retreat for roughly 150 donors, GOP leaders and lawmakers is planned for the final weekend in February at a hotel in Palm Beach, where DeSantis will tout his record as governor. Aides are speaking to and vetting operatives in early states...