When becoming a US citizen, you are supposed to give up a passport of any other country.
I've been checking around, and US government does not prosecute, or seem to care about those that keep their Polish passport anyway.
But what about that oath you take at the US naturalization ceremony, which starts, and I quote:
"I hereby declare,
on oath,
that I absolutely and entirely renounce and abjure all allegiance and fidelity to any foreign prince, potentate, state, or sovereignty, of whom or which I have heretofore been a subject or citizen;..."
I've been checking around, and US government does not prosecute, or seem to care about those that keep their Polish passport anyway.
But what about that oath you take at the US naturalization ceremony, which starts, and I quote:
"I hereby declare,
on oath,
that I absolutely and entirely renounce and abjure all allegiance and fidelity to any foreign prince, potentate, state, or sovereignty, of whom or which I have heretofore been a subject or citizen;..."