...by the 2 major political parties has indeed left a vacuum that in the 1932 was filled by Democrats, Farm/Labor, Communist, Liberal and Socialists parties.

I have long contended that 90% of Americans, when it comes to bread and butter issues like jobs, putting a roof over the heads of ones family and putting good food on the table, are all on the same page. I like to call this the center. In the US there is no major political party that represents the center.