What would constitute a political party virtually anywhere political parties are relevant is a political faction or caucus within one of the two establishment parties in the American system.
Progressives are generally a caucus within the Democratic Party. The Democratic Party is predominately and increasingly a centre-right party and has consistently thrown its political weight behind incumbent conservatives against its progressive caucus.
These are the major components of there not being an electorally relevant American Progressive Party.
What would constitute a political party virtually anywhere political parties are relevant is a political faction or caucus within one of the two establishment parties in the American system.
Progressives are generally a caucus within the Democratic Party. The Democratic Party is predominately and increasingly a centre-right party and has consistently thrown its political weight behind incumbent conservatives against its progressive caucus.
These are the major components of there not being an electorally relevant American Progressive Party.