[aMorePerfectUnion]

The American and Cuban claims have to be adjudicated to be found valid; and in hindsight we can see all the claims are valid, were valid at birth.

So did Ted fill out papers renouncing his cuban citizenship, or is he still cuban?

[Cboldt]

-- So did Ted fill out papers renouncing his cuban citizenship, or is he still cuban? --

He didn't fill out any formal renunciation, and I don't think he has to. His right to Cuban citizenship, like his right to US citizenship, depends on him claiming it. He's entitled to it.

I think his right to Cuban citizenship might be "difficult" under Cuban law, given his near lifelong attachment to the US, and Cuban constitution not recognizing dual citizenship.

That "dual citizenship" issue doesn't play at birth - Cuba will take the child who has citizenship on birth abroad to a Cuban parent.