[FivePoints]

(08-07-2018 01:49 PM)Going strong Wrote:  

(You mean, Visa or mere entry stamp for EU passports?)

They'll ask... unless your foreign passport is brand new and has been issued at your local, US-based consulate. Then they'd probably try to find a trace of you in some database for entry-date, or just wave you off with a tired shrug.

If you have an EU passport you must still apply for an ESTA Visa before entering the US. They're going to make you prove when you entered the country, show documentation etc and ask why you don't have a stamp. The passport will say where it was issued (which shouldn't be in the US). And even if it was, you'd have to show a police report saying why your embassy issued you a new passport while in the US. They'll trace their database and see that this is in fact your first foreign passport, and that you didn't enter the country on this one.

It can go two ways: Either they find out you are an American and stop you from travelling (since you owe Federal taxes or haven't paid child support), or they'll suppose you are a European being in the country illegally and ban you from reentering for 10 years.