As the last four standing duke it out in Miami tonight at 9:00 p.m. EST, be sure to follow these TNR writers on Twitter for live analysis and commentary: 

Noam Scheiber: @NoamScheiber

Walter Shapiro: @WalterShapiroPD

Matt O'Brien: @obsoletedogma

Ed Kilgore: @ed_kilgore 

And, of course, the official TNR twitter feed: @TNR