How is the NY State Senate map so GOP friendly? Dems have controlled the gov's mansion and State House since the last census. Do both chambers have to agree on a map, thus giving the nominally GOP Senate veto power over any plan that wouldn't benefit them?
Local politics simply doesn't mirror national politics in New York. Before 2009, Republicans had control of the chamber since 1964. Shortly after the new Senate was sworn in, party control was put in jeopardy due to a leadership crisis. Following the 2010 midterms, Republicans and Independent Democrats had enough seats to co-lead the chamber. One of the reasons Republicans have an advantage in the Senate is that
Upstate NY is proportionately overrepresented while NYC is underrepresented.