2010Final results
2010 election for New York Senate District 47
New York State Senate · New York
Joe Griffo (R) won with 68.6% of the vote, defeating Michael J. Hennessy (D) by 37.3 points.
Joe GriffoRepublican · winner · incumbent
68.6%55,909
Michael J. HennessyDemocrat
31.3%25,525
81,494 votes
Source: Harvard Dataverse / Carl KlarnerUpdated Sep 30, 2026, 7:29 AM ET
The seat over time
D − R margin in this seat's races around 2010
Races before and after
Source: Harvard Dataverse / Carl KlarnerUpdated Sep 30, 2026, 7:29 AM ET