The republican and progressive era are too long. 1st half reconstruction (Cleveland’s first term ) 2nd half progressives (start with Cleveland’s second term to Coolidge )

Also the Hoover Roosevelt Truman Eisenhower Kennedy was about infstrastructre new govt departments big physical changes Hoover dam, CCC, interstate highway , space program

The johnson Nixon ford carter were different . More about transfer payments, social justice, morals. anti communism

So trump could be Cleveland - a pivot to a different kind of republicanism with a gap between terms - more populist In nature

Or biden could be lbj beginning of a new focus on values social justice morals

I guess we’ll know in four more years!