Career
Walker had started out as a summer intern for then Nassau County Legislator Editor Mangano. He moved on to become the assistant to Town of Oyster Bay Supervisor John Venditto and Director of Traffic Safety and Constituent Services. He then went on to become the Deputy Commissioner of Parks for the Town of Oyster Bay.
He was a major force behind the Save Environmental Assets Fund Committee.
Walker was then elected to the State Assembly. He was first elected after a special election held on May 24, 2005.
He was then reelected in November 2006 and 2008. He served as the Chairman of the RemaiNY Young New Yorkers task force, as well as the Medicaid Fraud task force, Waste and Abuse task force, Safer Communities task force and successful schools task force.
When Editor Mangano decided to run against Tom Suozzi as Nassau County Executive in 2009, Walker acted as Mangano"s Campaign Manager.
His mother, Rose Marie Walker was councilwoman on the Town of Oyster Bay"s Town Board, but left that position to take Editor Mangano"s old seat in the Nassau County Legislature. May 2005 special election, New York State Assembly, 15th AD
November 2006 general election, New York State Assembly, 1st AD
November 2008 general election, New York State Assembly, 1st AD.