There is no free lunch. For 2021, standard mileage rates for the use of cars, vans, pickups or panel trucks will be: 56 cents per mile driven for business use, down from 57.5 cents in 2020. https://www.shrm.org/resourcesandtools/hr-topics/benefits/pages/irs-lowers-standard-mileage-rate-for-2021.aspx#:~:text=For%202021%2C%20standard%20mileage%20rates,from%2057.5%20cents%20in%202020. Trump would also have to justify his trips. But don't hold your breath.