Breaking news this morning. One of the loudest and most aggressive voices from the right wing is dead:
Andrew Breitbart, the noted Internet publisher and author, has died, according to a source at Big Journalism. He was 43.
A statement posted on his website said that Breitbart died "unexpectedly from natural causes" this morning.
The Los Angeles Coroner's Office confirmed to ABC News Radio that Breitbart died shortly after midnight at UCLA Medical Center.