Can you legally drive a tank on the roads of the US?

Without obtaining a special permit to do so, no. The only tracked vehicles which are permitted to operate on public roads (and these are normally limited to surface roads) are vehicles which use rubber band tracks - steel tracks will tear up asphalt, especially when turning a tracked vehicle. For this reason, obtaining such a permit is highly unlikely.

Ans2 - Another factor of which many people are unaware is that very hard surfaces like roads greatly reduce tank tracks hours of use ! Tank tracks cost a lot of money to make AND to refit. -That's why armies spend a fortune on thousands of heavy trucks and trailers to move tanks if they are not actually in battle. - In fact, the US Army also used thousands of railcars to transport tanks and other tracked vehicles from Fort Hood to Galveston, Corpus Christie and Beaumont throughout the past 20 years !