Republican Assemblyman Brian Kolb said Thursday that he won't seek re-election this year.
Kolb represents the 131st Assembly District, which covers all of Ontario County and the northern part of Seneca County.
He was first elected to the Assembly 20 years ago.
"Obviously, 20 years is a long time to be a public servant, and I felt that I’ve given it my all for the last two decades," said Kolb.
Kolb led the minority party Republicans for nine years and was well-regarded at the Capitol.