The quip came after Musk said last month that he was “leaning” towards supporting GOP Florida Gov. Ron DeSantis for president in 2024.
Trump is said to be strongly considering a third consecutive bid for the presidency.
He was joined on stage at his “Save America” rally by US House candidate and former Alaska Gov. Sarah Palin as well as Senate candidate Kelly Tshibaka, who is vying to unseat Republican Sen. Lisa Murkowski.