Im using these quotes to say yes, broadly liberals (democrats) have had a hand in the fascism of the US; of which has always been fascistic, but as the "left wing of fascism" has put on a smiling face to trick us.

As far as I'm concerned, "liberal" is the most meaningless word in the dictionary. History has shown me that as long as some white middle class people can live high on the hog, take vacations in Europe, send their children to private schools, and reap the benefits of their white skin privileges, then they are "liberals." But when times get hard and money gets tight, they pull of that liberal mask and you're talking to Adolf Hitler. They feel sorry for the so called under privileged just as long as they can maintain their own privileges

Assata Shakur, 1988 from Assata : An Autobiography

There's also that Malcom X quote about liberals being the "smiling foxes."

A quote about George Jackson's politics :

For Jackson, echoing the prison writings of the Italian theorist Antonio Gramsci (an author whose translated writings were found in Jackson’s cell after his death), fascism referred chiefly to state-led economic development and the incorporation of organized labor.

In other words, for Jackson, fascism involved not only racist repression but also national development and reform. In this sense, the U.S. of the 1960s-70s was fertile fascist soil indeed. Such an expansive understanding of political domination may complicate and enrich antifascist sentiments percolating today around the defense of existing, often hard-won political liberties. Jackson forces us to rethink the distinctions between conservative and liberal administrations and to confront the legacies of even the New Deal and Great Society within a longer history of capitalism and U.S. imperialism.