I have Brazilian and Italian citizenship and passports.
Renewing the Brazilian passport I plan to apply for an USA VISA on it.
Is it true that from that moment on I MUST enter the USA using exclusively the Brazilian passport? I mean: no longer benefiting from the Visa Waiver Program until the VISA is expired?
The reason for my question is quite simple: While I don't need to use the Visa Waiver Program (VWP) if I have a valid VISA I would like to keep using the Automated Passport Machines available in the airport I normally use when go to the States. Those machines are for US Citizens/Residents and ESTA (VWP) users.
The question may sound odd, but I was told that IF you have a valid VISA you SHOULD use that passport to enter the US. (therefore entering the regular immigration line)
Of course when I travel I have both passports with me.