Truth of Democracy, p. 15:
Democracy has not sufficiently acknowledged that it must also, in some way, be “communist,” for otherwise it would be but the management of necessities and expediencies, lacking in desire, that is, in spirit, in breath, in sense.
Without communism democracy would lack spirit, inspiration, breath…life. I suspect he might have this backwards, that communism is the management of necessities, and it is democracy that breathes life into communism, but either way, I like that he sees that these two ideas–assuming they are understood properly, at their root, and not in their corrupted, actually-existing senses–should be intertwined, and each can and should draw strength from the other.
Path to the Possible 
I’m finishing a review of Mustafa Dikeç’s new book in which he reads Nancy alongside Arendt and Ranciere. You may find it interesting. A relevant talk is available here: https://www.youtube.com/watch?v=nbzi3wIZyvU