Rabbi Robinson greets Mayor Bill de Blasio as he enters LSS for our Yom HaShoa commemoration.

LSS President Lloyd Epstein greets Mayor de Blasio.

Lloyd Epstein and Rabbi Robinson escort the Mayor to the ballroom.

Mayor de Blasio greets Helen Rosenthal, Representative of the 6th District to the New York City Council.

LSS usher Paul Holm greets Mayor de Blasio.

From left, COJO Chairman Michael Landau, LSS President Lloyd Epstein, Mayor Bill de Blasio, LSS Senior Rabbi Shaul Robinson.

Mayor de Blasio enters the LSS Ballroom.

Mayor de Blasio greets COJO President, Rabbi Avrohom Marmorstein.

Mayor de Blasio greets Mark Levine, Representative of the 7th District to the New York City Council.

LSS Assistant Rabbi Josh Rosenfeld welcomes Mayor de Blasio.

Mayor de Blasio and COJO Chairman Michael Landau as Rabbi Robinson addresses those assembled.

Rabbi Robinson addresses the 300 people assembled to commemorate Yom HaShoa.

Rabbi Josh Rosenfeld, COJO President Rabbi Avrohom Marmorstein, Deputy Director of Intergovernmental Affairs Avi Fink, Mayor Bill de Blasio, and COJO chairman Michael Landau.

Shoa survivor David Israel lights a candle in memory of the six million Jews killed in the Shoa.

Mayor Bill de Blasio shakes hands with Holocaust survivor David Israel.

Rabbi Josh Rosenfeld, COJO President Rabbi Avrohom Marmorstein, Deputy Director of Intergovernmental Affairs Avi Fink, Mayor Bill de Blasio, and COJO chairman Michael Landau.

NYC Council Member Mark Levine, Rabbi Josh Rosenfeld, Rabbi Avrohom Marmorstein, Avi Fink, Mayor Bill de Blasio, and Michael Landau.

Chazzan Yanky Lemmer, flanked by Rabbi Shaul Robinson, sings a prayer in memory of the six million Jews killed in the Shoa.

Chazzan Yanky Lemmer sings a prayer in memory of the six million Jews killed in the Shoa.

COJO Chairman Michael Landau introduces Mayor Bill de Blasio.

Rabbi Shaul Robinson, Councilman Mark Levine, Rabbi Josh Rosenfeld, Rabbi Avrohom Marmorstein, Avi Fink, Mayor Bill de Blasio, and Manhattan Borough President Gail Brewer.

Mayor de Blasio shakes hands with COJO chairman Michael Landau.

New York City Mayor Bill de Blasio addresses the audience at Lincoln Square Synagogue.

300 members of the Lincoln Square Synagogue community listen as Mayor de Blasio stresses the importance of remembering the horror of the Shoa.

New York City Mayor Bill de Blasio addresses the audience.

Mayor Bill de Blasio and COJO President Rabbi Avrohom Marmorstein.

Mayor de Blasio, flanked by Rabbi Shaul Robinson and Michael Landau.

Mayor de Blasio says hello to Rebbetzin Sarah Robinson, and her twin daughters.

Mayor Bill de Blasio and LSS Head of Security Victor Paterno pose for a photo, taken by COJO Chairman Michael Landau.

LSS Executive Director Ben Keil introduces his son Meir to New York Mayor Bill de Blasio.

Mayor de Blasio departs from Lincoln Square Synagogue.

Rabbi Robinson bids farewell to Mayor de Blasio.