Original sentence: The Nineteenth Amendment (which gave women the right to vote everywhere in the United States) was not ratified until 1920, during Rankin's first term in Congress (1917-1919), many women throughout the country did not have the right to vote, though they did in her home state of Montana
Edited sentence: The Nineteenth Amendment (which gave women the right to vote everywhere in the United States) was not ratified until 1920; therefore, during Rankin's first term in Congress (1917-1919), many women throughout the country did not have the right to vote, though they did in her home state of Montana