I heard the Republican party used to be left-leaning while the democratic party used to be right-leaning. When did they swap positions on the political scale, and why? | AskHistorians Archive Observer

I heard the Republican party used to be left-leaning while the democratic party used to be right-leaning. When did they swap positions on the political scale, and why?

by aa033

higherbrow

There's always more to say, but you can find more information about this here and here, both by /u/Samuel_Gompers .