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I am a dual citizen with Philippines and US. My US passport just expired and I am renewing it, no rush. Out of curiosity, I want to know if it is possible to travel with just my Philippine passport. Filipinos need a visa to enter the US, but I am a US citizen. I assume that leaving the US would be no issue, but upon re-entry where would I go for customs, a US citizen with a foreign passport?
DUPLICATE QUESTION FLAG: A similar question has been asked of a US-Canada dual citizenship, but Canadians do not need a visa to enter the US. And I am asking about more than just entry to the US, but also leaving the US, and details as to where I would go for re-entry in US customs.