What did progressivism have in common with populism?

Populists VS Progressives their Similarities are both Interested in the economic & Both 3rd party efforts die out- absorbed by mainstream Democratic and Republicans. Yet ideas influence political dialogue for decades, political power of the common man, not elites, Believed gov't could work for the people, Broad, direct access to political power by average people would make America stronger. 

for the united states of america, 1945 to 1964 was a time of high economic growth and general prosperity. it was also a time of confrontation as the capitalist united states and its allies politically opposed the soviet union and other communist countries; the cold war had begun.

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