Did you get your new Colombian passport while in the US? Otherwise it suggests you left without your passport? How is that legal? In any case if you had a B2 i

Did you get your new Colombian passport while in the US? Otherwise it suggests you left without your passport? How is that legal? In any case if you had a B2 in an expired passport, it is still valid (I came to the US with two passports, one expired but has my US visa). I was just lazy and did not transfer it, but there is no problem doing so. You just might have to explain your passport-in-the-US situation.