The polling community has suffered three heartbreaking losses in the last month. The Roper Center offers our sympathies to the families, friends, and many colleagues of Phil Converse, Mike Mokrzycki, and Thomas Riehle.

Phil Converse of University of Michigan was a giant in the field, whose contributions to our understanding of voter behavior are unsurpassed. His texts, including the seminal work The American Voter, are required reading for any student of the field. Over his long career, he also served as teacher and mentor to a whole generation of researchers.

Mike Mokrzycki was founding director of the polling unit for the AP. In recent years, he had established his own survey research company. He was an active member of AAPOR and served on the committee devoted to recording the history of public opinion research. His warmth and generosity were well-known to all who knew him.

Thomas Riehle served as founding President and COO of Ipsos Public Affairs, founded RT Strategies, directed the Economist/YouGov Poll, and recently started his own polling firm. He was a greatly talented polling professional whose career was cut short too soon.