I have 2 questions: 1)Tire and sensor damage to car from a pothole 2) Damage to a rental vehicle from a tractor trailer truck that blew out a tire

For your personal use vehicle, owned, leased, or rented. Not deductible.Repairs, maintenance to personal use vehicles is not deductible.

Is damage to a rental car from another vehicle deductible ?

For a personal use rental car, No, it is not deductible.