AJC is calling on Jewish communities across the country—along with elected officials, religious and civic leaders, and other communal allies—to flock to synagogues this coming Shabbat (Friday night and Saturday, November 2-3) in a nationwide campaign named #ShowUpForShabbat. The AJC initiative is being launched in response to the horrific attack at Tree of Life Or L'Simcha Congregation in Pittsburgh, which left 11 Jewish worshipers dead.