account - what went down
The Democratic party quickly became more popular as the 'party of the people' under Roosevelt's new deal plan. FDR was followed up by fellow Democrat Harry Truman who ‘ended WW2’ with his decision to drop atomic bombs in Japan. After which during the election of 1952 there was a dramatic shift in popularity to Republican power with the election of Eisenhower. This did not last long either and we were back to Democratic in the next two elections with John F Kennedy and Lyndon Johnson, switching back to Republican again in the next election (1968) to Nixon.
Its clear to see that during the 5th party system, power was traded fairly evenly between parties. Some argue that the 5th party system did not end in the 1960's but actually continues into today with a continued trend in party switching without a clear party system victor. An example being how Democratic president Barack Obama's election was followed up by Republican president Donald Trump. However others argue that their has been yet another party system emergence, the 6th party.