I am planning to travel to Mexico from US in January, 2019. I have an unexpired H1-B visa stamped on my passport from my previous employer. I have the new I-797 from my current employer. But it’s not stamped on my passport. (Both passport and visa stamp are going to be valid during the duration of the travel. And the travel duration is under a week)
I have a couple of questions was hoping you could help clarify
Am I legally allowed to travel and re-enter the US given my current visa situation? If yes, what documents would I need to present to the CBP officer upon re-entry?
Appreciate your response!