As it says, PoD is that Theodore Roosevelt doesn't go on the expedition into Brazil in 1913. The expedition arguably weakened his health, nearly killing him even, and after it he never was the same as before. So, he never goes to Brazil and stays in the US.
How does this effect his lifespan? How would a healthier Roosevelt's ambitions politically differ from OTL?
How does this effect his lifespan? How would a healthier Roosevelt's ambitions politically differ from OTL?