Following the 2010 census , New York redistricted the Senate , expanding it from 62 to 63 seats as of January 2013 . The 34th district of New York Senate where Klein was elected was gerrymandered to combine a majority white district in the Bronx with Jewish neighborhoods in Riverdale and in the East Bronx . When all election night results were tabulated on November 6 , 2012 , it appeared that Democrats would hold 33 seats for a three-seat majority , their third Senate majority since World War II . Yet not long after the Senate Democrats ' momentous victory , on December 4 , 2012 , Klein and the Republican Leadership announced a power-sharing agreement between the IDC and the G.O.P. in order to govern the Senate in a bipartisan coalition . Under their power-sharing arrangement , the IDC and the Senate Republicans to " jointly decide what bills would reach the Senate floor each day of the session " , would " dole out committee assignments " , would " have the power to make appointments to state and local boards " , and would " share negotiations over the state budget " . Sens. Klein and Skelos also agreed that the title of Senate President would shift back and forth between the two of them every two weeks . Klein was a prime sponsor of the 2013 New York Secure Ammunition and Firearms Enforcement Act ( NY SAFE Act ) , which enacted new comprehensive gun control measures statewide in the wake of the Sandy Hook Elementary School shooting in Newtown , Connecticut and in response to mass shootings nationwide
Sandy Hook Elementary School shooting
Sandy Hook Elementary School shooting
Jeffrey D. Klein