The passing of which President of the United States made Calvin Coolidge the 30th President of the United States?

Warren G. Harding, the 29th President of the United States, died of a heart attack in 1923 while on a visit to San Francisco, making Vice President Calvin Coolidge the 30th President of the United States.

Asked by Darrell Rowe · Last updated 4 years ago · 15.8K views