“The idea that the far-left and far-right eventually meet in their ideologies and tactics.”

“Discussed to compare the far-right and far-left ideologies.”

“The horseshoe theory of all this is there's some kernel of populism and it's why the Democrats can't figure out how to”

“political theory, Jona Goldberg has come around to it due to growing illiberalism on the right and left”

“theory discussed in relation to political polarization”