<em>One example of how third parties can thrive and grow in one election and fade away by the next is evident when considering how Theodore Roosevelt’s National Progressive party faded back into the Republican party. </em>
Theodore Roosevelt’s formed the National Progressive party in 1912. He did not like the idea of losing the presidential nomination for the Republican Party. The Republican Party had nominated William Taft. The new Progressive party supported populist reforms to attract new people that helped to maintain the party. But after the1912 election, the Progressive Party, also known as the "Bull Moose Party," lost popularity and finally disappeared in 1920.
Hello! The new technology that allowed the Allies to more effectively bomb the Japanese main land, was the capacity of the B-29. If we look at the other ones, we see that all that stuff already exist before the war. Hugs!