When I was younger, I held a visa on my Argentinian passport. I must have entered and exited the US around 6 times with my Argentinian passport.
7 years after last entering the USA, I now hold an Italian citizenship, and the US visa for my Argentinian passport has expired. Now, I want to travel to the US with my Italian passport because it's very cumbersome and expensive for me to renew my US visa on the Argentinian passport. Can I expect to enter the US without problems with this passport? Would I be breaking any laws or something?