Most influential public intellectuals?

A lot of talk about this among my online friends lately. As a semi-private pseudo-intellectual who writes about public intellectuals, here are my candidates for the most influential American public intellectuals of this millennium so far (in no particular order):

Richard John Neuhaus
Cass Sunstein
Samantha Power (got that one from Ross Douthat)
Ta-Nehisi Coates
Clayton Christensen