I recently had an immigration nightmare. I am a seasoned traveler and think I made an amateur mistake. However, I’d like some guidance if you have some advice.

I am a dual Colombian-US citizen. I recently reclaimed my Colombian citizenship. I booked a trip to the Dominican Republic. I was granted entry no problem. However, I was refused exit because I did not have a visa for entry to the US. They did not care that I was a dual citizen. I prefer to travel on my Colombian passport but unless I get a visa, I cannot.

Does anyone know how to get a visa to be able to travel on the Colombian passport for entry back to the US?